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BBK Ceramic Tuned Length Shorty Headers (11-17 V6)

Market Price $459.19 You Save 11% ($49.20)
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$409.99

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  • Item 56235
  • MPN# 14420

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Features, Video & Details

  • Increases Rear Wheel Horsepower
  • Shorty "Tuned Length" Header Design
  • Free Flowing Mandrel-Bent Tubing
  • Silver Polished Ceramic Coating
  • CARB EO Number: D-245-16
  • Fits 2011-2017 3.7L V6 Mustangs

Review & Installation Video

Review & Install Video

Hey, guys. Justin with AmericanMuscle.com here with my quick review of the BBK Tuned Length Shorty Headers available on your choice of either a ceramic or chrome finish, putting all 2011 and newer V6 Mustangs. So the products I have with me here are available for the 37 Mustang. Now a lot of guys and gals that drive them will tell you, they can be pretty potent given a little help. The help we're talking about again, Tuned Length Shorty Headers from BBK, available in your choice of either a chrome finish shown down here or a slightly more expensive ceramic coating up here. We'll talk about the differences between coatings in a minute, but let's first talk about what this tuned length business is all about. What BBK wanted to accomplish with their tuned length system is to basically keep all the runners of primaries here essentially the same length or as close to the same length as possible. Drawing them out a little longer than what you might see in a traditional shorty design, getting you closer to the performance that you might see with a long tube, yet still keeping that same compact package. You're still keeping your same catalytic converter location and still keeping the price down at the same time. Now with all that said, guys, can you expect similar performance or the same performance out of a shorty that you might see with a long tube? Well, honestly, the short and easy answer to that question is no. A long tube header is going to outperform a shorty, seven days a week and twice on Sundays. With that said though, these things will still offer some pretty decent gains. In fact, BBK is claiming roughly 10 to 15 horsepower at the wheels, 10 to 15 pound to the torque with your V6, and honestly, I have no reason to doubt that. Construction noise, here's what we're going to be looking at, guys. One and five-eighths inch mandrel-bent tubing, OE-style laser-cut flanges for a perfect fit. And they even include brand new gaskets and hardware to get you going. These are CARB certified so they are going to be 50 state legal. And one thing I do really like that BBK does with all their headers is they pressure test them just to ensure it's a leak-free product. Now onto my nitpicks. I do have few here with the BBK headers, but they're really not deal breakers in my opinion. Firstly, I wish the welds were a little better. For instance, I wish they fully welded this flange here at the collector. Again, not a big deal but just something to point out. I also wish they would have done a better job of smoothing out in inside ports here of the runners, there was little slag in there if you get your finger in there. Not going to totally affect the performance, but again, just my nitpick. This is a mild steel header, guys. It's not a stainless steel product so therefore, you almost have to expect some kind of corrosion to show up later on down the road. Because of that, we have seen some inconsistencies with the chrome coating. A little bit of surface rust of some of these headers. Again, not going to affect the performance. Well, I wouldn't be doing my job as a reviewer if I didn't point that out to you. My solution, spend the extra hundred bucks and go with the ceramic version here as they are going to be free from any surface imperfections. And on the topic of the finishes, let's get into that a little bit more because there are some subtle differences between the two. As I just pointed out here, guys, the ceramic is going to be a little bit more money, roughly a hundred bucks to be exact. And it will offer some additional benefits that you won't get with the chrome coating. For instance, the ceramic coating will slightly more durable. Basically, it's going to be more uniform coating. It's going to be in more durable coating, help resist any corrosion that you might otherwise see on that mild steel construction. And it's going to do a better job of reducing under-hood temperatures. That's what the ceramic coating is all about. Again, it does come out on the price though. Under 100 bucks on top of the chrome option. Let's talk about the chrome a little bit more. Again, more affordable here, coming in to the high $200 range. Very reasonable for an entry-level header, and it is going to be a pretty attractive header. It got discolor in a way that if you've seen a stainless header or if you've seen a chrome header kind of discolor, after a few heat cycles. You know that chrome turns into a bluish or purplish color. It actually looks really cool in my opinion, even cooler than the ceramic which kind of just remains that dull gray. Even though this is a performance product, I know it's definitely worth pointing out some of the differences and appearance because you do actually see these guys pretty good when you pop the hood. And again, don't take my word for it. Feel free to check out some of the customer submitted images on the site and see for yourself. Installation is a little bit of a bear here, guys. So just keep that in mind before you get started. I'm going to give it a full three out of three ranges on my overall difficulty meter. Not quite as hard as the long tubes, but it's pretty close. That's going to test your toolbox and make sure you have a decent set on hand before getting started, a six pack of your favorite adult beverage, and leave yourself a half to a full day to get these guys knocked out. Now for my final thoughts, guys, the Shorty Tuned Length Header from BBK is a great entry-level product. For V6 owners out there who are really aren't willing to go all-in on a set of long tubes, the shorties offer a no-tune require install. They're going to be slightly easier to install compared to those long tubes, and they're definitely going to cost you a lot less than a set of those long tubes. So be sure to checkout a set of BBK's four-year ride right here at AmericanMuscle.com

Tuned Length Design. BBK Shorty "Tuned Length" Headers out perform both the stock manifolds and regular shorty headers. Tuned Length Headers have a unique extended tubular design that allows for unrestricted exhaust flow to increase horsepower and torque. Perfect for street and strip.

Silver Ceramic Coating. These Tuned Length Shorty Headers are completed in BBK's Polished Silver Ceramic Coating that not only looks great, but reduce under hood temperatures to help increase horsepower and extend the life of the headers. Ceramic Coated headers will long out last both chrome plated and polished headers.

Quality BBK Construction. BBK Shorty Tuned Length Headers are manufactured from 1-5/8" CNC mandrel bent tubing for unrestricted airflow. And feature one piece laser cut 3/8" header flanges for additional strength, leak-free performance and a OEM fit. The headers are then finished with BBK's high-temp Silver Polished Ceramic Coating for good looks and to lower under hood temperatures.

Application. Designed as a direct bolt on, these BBK Shorty Tuned Length Headers will bolt straight up in the stock location to the factory Mid-Pipe without any modifications on both automatic and manual 2011 to 2017 3.7L V6 Mustangs to improve exhaust flow and sound.

Technical Notes. These BBK Shorty Headers are CARB certified (CARB EO Number: D-245-16) and 50 state legal.

Fitment: 2011 2012 2013 2014 2015 2016 2017 Details

What's in the Box
  • (1) Driver side shorty header
  • (1) Passenger side shorty header
  • Installation hardware
Installation Info
Tech Specs
Header Specifications
Header Type: Short Tube Finish : Ceramic
Type Mid Pipe Required: Standard Fitment: 2011-2017 3.7L V6 Mustangs
Will it fit my Mustang?
  • V6 - 11, 12, 13, 14, 15, 16, 17

People Who Bought This Item Also Bought

Most Helpful Reviews

5/5
BBK header wow big difference

great quality passenger side as previously discussed takes 4 hrs.. removing started a big help.. driver side should have been easier. how ever after installing header...found ...

Read More
Helpful (1)

5/5
With a good exhaust

Installed these and a Borla Catback Touring exhaust and you would swear the car sounds like a V8.

Helpful (1)

Overall Rating 4.6 out of 5 stars
Read All 61 Reviews

Customer Photos (43) Submit Your Photo

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19 Questions / 6 Answers

Ask a Question

I am interested in this product because I live in California. I recently got my '11 smogged for the first time and I asked my tech about this product since it does have the CARB rating. What he told me is that they would look for a CARB sticker on the product to ensure legality. I don't see a sticker on in the product images... does it come with one that I can apply somewhere else under the hood for quick reference?

V6Tim

Helpful (1)
  • Hello, These BBK Shorty Headers are indeed CARB certified (CARB EO Number: D-245-16) and 50 state legal. You would receive a carb sticker that you would place on the bulk head or inner fender.

    AMMike

WILL THIS FIT ? Will this short headers fits my Magnaflow Street Catback Exhaust (13-14 V6). Item # 48054. if not what type of header should I be looking for.

starr

Helpful (1)
  • Sure, that wouldn't be a problem. Your catback doesn't directly bolt up to your headers so these Ceramic Tuned Length Shorty Headers would be a great addition to your Mustang.

    LisaS

Show 1 more answer

Will this work with stock exhort and x Pipe on a 20q4 v6?

Ryan

Helpful (0)
  • These BBK headers will work with the factory catback and mid-pipe.

    AMJEFF

Alrighty, I was dead set on long tube BBK's. But after doing some research, I am thinking the shorties might be better for what I am looking for... the deeper muscle car sound. I was planning on getting the BBK mid catted (o/r might be more trouble than its worth) but would be nice. How would this sound on a 14 3.7 with a Magnaflow comp 4.5 which I do have. And can I still put on the catted mid x pipe?

AaronM

Helpful (0)

I have a 2016 v6 mustang I have the flowmaster scavenger x pipe and the flowmaster outlaw exhaust will these fit with my x pipe and exhaust?

MustangT

Helpful (0)
  • The BBK Ceramic Tuned Length Shorty Headers will connect to any exhaust meant to attach to factory headers/exhaust manifolds. These should work with your exhaust setup without any issue.

    Rob D

I want to buy a bbk ceramic shorty headers and bbk off-road x-pipe from your company my question is can I install it with out any problem

MohammedA

Helpful (0)
  • You should not have an issue installing the BBK Ceramic Tuned Length Shorty Headers and the BBK Off-Road X-Pipe. The Headers will bolt up directly to the heads and the X-Pipe will bolt up to the over axle pipes with no issues.

    AshleyK

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Customer Reviews (61) Write a Review

Overall Rating 4.6

out of 5 stars

Installation Time:Full Day

Installation Cost:$250-$500

  • Performance Gain 4.203704 4.2
  • Fit 4.537037 4.5



  • 4/5

    Installation Time: Afternoon

    February 18, 2017

    Deep Six!

    3 guys and the right tools = a 3 hour tour. The end result... Non restrictive air flow, horsepower gain and a deep, deep tone! The only problem lemon I had was on install. The bottom factory stud would not fit due to the angle of the weld on the header. I will have to fabricate a shorter stud. Which is the only reason why I gave a 4 out of 5. The sound is amazing. Coupled with my Roush CAI and Borla ATAK Cats.

    Magnetic37

    Year: 2016 Submodel: V6

    Helpful (1)

  • 4/5

    Installation Time: Weekend

    December 15, 2016

    Better sound, minor problems

    The headers themselves are easy to install. I recommend removing the battery and battery tray completely. I also recommend buying or renting some sort of dremil saw in order to cut the 4 flange bolts. BBK supply's new flange bolts, however I recommend that you buy new bolts for the block as well as new gaskets from ford. The steel core graphite gaskets leak. However not nessisary if a tapping noise from the engine doesn't bother you. A tap and dye kit may be of much use as the block threads may be stripped or cross threaded. If I had all of this from the start, it might have only taken me a day. The sound is much deeper; and different when combined with Borlas CAT back S-Type system. As far as power goes I have yet to contact Bama so I have no tune as of yet.

    Casper72

    Year: 2014 Submodel: V6

    Helpful (1)

  • 5/5

    October 14, 2016

    With a good exhaust

    Installed these and a Borla Catback Touring exhaust and you would swear the car sounds like a V8.

    Scott

    Year: 2016 Submodel: V6

    Helpful (1)

  • 5/5

    September 24, 2016

    BBK header wow big difference

    great quality passenger side as previously discussed takes 4 hrs.. removing started a big help.. driver side should have been easier. how ever after installing header...found out studs coming off head were of by about 1/32" flange would not go over studs..had to use step drill to enlarge holes...then could install flange.. suggest check new header against old exhaust manifold be for installing header.. might be easier to enlarger holes with out header installed if it is required but results were AWESOME

    john2626

    Year: 2016 Submodel: V6

    Helpful (1)

  • 4/5

    Installation Time: Less than 1 Hour

    June 03, 2016

    BBK Shoties are a MUST upgrade for V6 ...!!

    Just got the short headers installed and man you can feel significant improved throttle response which seemed lugging the engine in lower rpm on stock headers. Sound track has got more deeper to it now (Close to V8) as it clears up the drone if any from your exhaust. You can launch the car from stand still even from 3 gear and the engine pulls seamlessly. I would highly recommend this for any one looking for good deep sound and got throttle response in low revs/rpm.

    harish

    Year: 2015 Submodel: V6

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    May 24, 2016

    Love em!!!

    First off I ordered these on a Thursday afternoon and they arrived the very next day! Great job AM! Love the sound I'm getting out of these. I have a flowmaster x-pipe with their outlaw axel back and these shorties made the tone much tighter and deeper. I can feel a bit of a power increase as well in the mid RPM range. It used to be when I was in 3rd gear it wouldn't exactly get up and go when I hit the gas, well not anymore. This is a great bang for your buck, direct bolt on mod for your V6. I HIGHLY recommend these.

    Chris

    Year: 2016 Submodel: V6

    Helpful (1)

  • 4/5

    Installation Time: Afternoon

    May 03, 2016

    BBK Ceramic Tuned Length Shorty Headers (11-16 V6)

    BBK Ceramic Tuned Length Shorty Headers 2011 V6. WOW... Lets talk about that for a while. The headers came in perfect condition. The ceramic was smoothly coated and shined like glass. "We" installed them on a hoist with good lighting and the total install took about 4.5 hours with a coffee break or two in there. Now for the grit! The driver side install was a breeze, about .5 of the 4.5 total. On the other hand, the passenger side, a whole new ball game. The fitment was very good. Now the BUT. "But" you are in for a treat with this side. Your fingers had better be the size of a very small child to be able to get the bottom lower nut on the rear of the flange. It is almost next to impossible to even start it. Impossible to see And to turn it down tight, well all I can say is, have a ball. We did! It will take most of the 4 hours left to just get it started but once you do, that's when the fun starts. To turn it down, you need to get the nut to the flange and try to get it to catch on the stud. Then gently try to turn it with your baby fingers. After it is started, "we" cut a wrench off with the torch at about 2 inches long. Then tried to turn it as much as "we" could. After about 3.9 hours and lots of talk about each others mothers, it was over. At last, it was tight and the headers were on. If you are new to the game of cars, "We" (as in two) suggest that you have them installed by a Professional. We had a good time putting them on, and some "FUN" along the was, but it is a Band*h of a job. Thanks to AM for the quick shipping and well packed pipes. The sound of the headers and Pypes Mid Muffler with black tips is awesome. Have fun Stang Gang!

    Gordo340

    Year: 2011 Submodel: V6

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    August 27, 2013

    Great Product

    The BBK Ceramic Shortys are GREAT! You can tell when the car is started, it purrs. Give it some gas and the sound and the extra boost was well worth the money. I choose the Ceramic, wanting to make it cooler in the engine compartment. For the ease about 3 ½ hours to install at a very easy pace. I might have gotten more gains with the Long tubes but it would have been more costly. When I purchased my V6, there were no Shortys for the 2013 V6. So I went with the BBK Catted Pipe and Ford Racing Axle-Backs. The Long Tubes would have been an extra $650, that includes the Catted Shorty X-Pipe. Then trying to get the extensions for the oxygen sensor to work. Several people have noticed the sound difference. If only the Long Tubes were easier to [put on. Several on Mustang Evolution are having problems installing Long Tubes on their V8s.

    NewMtang

    Year: 2013 Submodel: V6 Anderson, Indiana

    Helpful (2)

  • 5/5

    Installation Time: Afternoon

    September 11, 2013

    Totally happy with the bbk headers

    I already have an after market performance exle-back exhaust on the car and adding the bbk headers did exactly what I was looking for in the tone. The over all sound of the car is awesome. Nice but not an over powering sound that u would regret. Install time was about five hours. And yes you can feel the added horse power.

    Everestjim

    Year: 2013 Submodel: V6 Orlando, FL, USA

    Helpful (4)

  • 5/5

    Installation Time: Full Day

    September 09, 2013

    You have to have headers!

    These BBK headers are a very high quality item. The Ceramic coating was excellent. The instructions were perfect, make sure that you follow them precisely and you can't go wrong. That said, doing them in my garage was a pain. If you have a buddy with a hoist talk him into letting you use it. The stock exhaust manifolds were very restrictive, these really let the engine breath! They work very well with my cold air intake and Bama tuner!

    227Fun

    Year: 2014 Submodel: V6 Mukilteo, WA, USA

    Helpful (4)

  • 4/5

    Installation Time: Full Day

    September 23, 2013

    Great Sound!!!

    I bought these to complete my full exhaust. The headers will give you a nice deep tone to your exhaust. Power gains are throughout the powerband and better throttle response. Installing them is a PITA!! Driver side is simple enough the passenger side is a right squeeze. Take your time and it can be done with floor jack some jack stands and hand tools. Took me and a friend of mine 6 hours. From jacking it up to starting the car. Great product!!! See my youtube sound. Not the greatest but it'll do. http://m.youtube.com/watch?v=ce6kJ33NfcI

    Elmo

    Year: 2012 Submodel: V6 San Antonio, TX

    Helpful (4)

  • 5/5

    Installation Time: Afternoon

    July 13, 2014

    Huge Difference from Stock

    Installing these headers was a lot easier than I thought it was going to be. Took about 3 hours by myself. Added nice low-mid range toque and cleaned up the sound nicely. Very pleased. Couple installation tips: 1) I sprayed the nuts with PB blaster the night before and let it soak overnight. Each one came off extremely smooth. A few studs w the nuts ended up coming out as well. If this happens, use a 5mm socket and ratchet and a 1/2 wrench and remove the nut from the stud, then use the 5mm socket to snug the studs back into place. DO NOT OVER TIGHTEN. 2) Remove the battery and plastic battery holder as this will free up more room for the passenger side rear lower nut. 3) Get a 1/2in ratcheting wrench with a flex head. Saved me loads of time. But DO NOT use the ratcheting wrench on the rear lower passenger side nut. USE A BOX END. The distance in between the header and the stud is too close and will lock the wrench in between making it impossible to pull out. I had to use a box end wrench to loosen the nut, pull the ratcheting wrench out, and then tighten the nut with the box end. 4) Use the supplied BBK gaskets. I've read people reused their stock gaskets which I think is a mistake. The BBK gaskets are perfectly cut for the shorty headers and are one piece whereas the stock gaskets are three layers of metal and look cheap. Overall, I will continue to be a returning customer to American Muscle! Thank you!

    Mean14

    Year: 2014 Submodel: V6 Palatine, IL, USA

    Helpful (2)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    July 02, 2013

    Very nice

    Added a nice sound to my exhaust. Nice power gain. I can tell the difference from before they installed. They fit great once they are installed but the mechanic had a hard time with the nut access. Glad I had a mechanic install as I would not have had the right tool for the nuts. Especially on the passager side install as it was very tight.

    Mark53

    Year: 2012 Submodel: V6 Arizona

    Helpful (3)

  • 5/5

    Installation Time: Full Day

    September 17, 2015

    Angry Pony

    What a difference in sound perfect deep sound no obnoxious rasp noises. I left resonators on, and added magnaflow 12225 straight thru mufflers.there is no drone while cruising .The 3.7 sounds like the v8 .And cost Less than 1/2 price of cat backs and sounds better .Did all work myself.

    Angrypony

    Year: 2015 Submodel: V6 South jersey

    Helpful (1)

  • 4/5

    Installation Time: Afternoon

    September 04, 2015

    Life's to short to drive a stock car

    Took less than three hours by myself working on the floor w/ jack and stands. I didn't remove the battery or the starter. Didn't even dis-connect the battery. Ratcheting wrenches help. Pretty easy actually. But I've been working on cars for a loooong time! Noticeable increase in low and mid range torque which is exactly what these engines lack. Took me a long time to decide to do this, but glad I did. Fit was very good, basically a simple R/R job.

    Noredline

    Year: 2014 Submodel: V6 Skokie, IL

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    July 19, 2015

    The beast breathes

    Took about 4 hours to install mostly because of the passenger side being a pain. Had to take off the starter but that took 5 minutes. Everything fit just fine and was well worth getting these. I can tell a major difference on the interstate from 60 ... It defiantly gets up and goes a lot quicker than before.

    Guy

    Year: 2015 Submodel: V6 Kenner, LA

    Helpful (1)

  • 4/5

    Installation Time: Afternoon

    July 11, 2015

    Good Value

    The headers arrived in good condition. We used new Ford gaskets instead of the ones supplied by BBK. There is a marked difference in quality! With a fresh BAMA tune, you can really feel the difference in the seat of your pants. I bought the ceramic coated ones, and they look great. A nice upgrade at a decent price point.

    OB1

    Year: 2014 Submodel: V6 St. Louis

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $500-$1000

    June 04, 2015

    Adds a growl to the V6.

    I had these installed with an Airaid cold air intake and a tune about two months ago. It feels like the car has gone feral. There was a noticeable power gain with the combination of the three, but what I really like is the sound. The overall tone is lower, which gives it a nice growl when you're cruising around.

    Cyle99

    Year: 2014 Submodel: V6 Hazlet, NJ

    Helpful (1)

  • 4/5

    Installation Time: Full Day

    October 05, 2014

    modest bump in performance

    It took me about 6 hours to install these headers with my 14 year old son. Sort of a father son project. I read some of the previous reviews and put put penetrating oil on the bolts which made them come out reasonably easy. The factory manifolds were pretty easy to take out other than I had to use a pretty long extension for the lower bolts on the driver's side (from underneath the car). Installing the new headers was a lot more difficult than I had anticipated. Only a few bolts on each side can be reached with a socket wrench, the rest must be tightened with a wrench using a combination of box and open ends. The infamous passenger side rear lower bolt - don't believe a word of the BBK instructions regarding access to this bolt. Moving around the exhaust pipe will not give you access to this "tricky" bolt as they tell you. After fighting with the exhaust pipe for 30 minutes I decided to remove the starter. I was a little nervous about removing the starter but once I checked there's only two bolts that hold it in and it's really tiny. No need to disconnect the wires either (make sure you've disconnected the battery however), just remove the two bolts, pull back the starter and rest it on the frame rail. Once it's out out of the way you can easily access that header bolt with a box wrench, regardless of the exhaust pipe position. I wish BBK had mentioned that in the instructions. The rest of the install was pretty straightforward but tightening bolts with a box/open ended wrench was very time consuming. In regards to performance I have mixed feelings. My 2011 mustang has Magnaflow axleback mufflers and a cold air intake. I thought this might be a way to get a little better sound out of it and maybe pick up a tiny bit of horsepower. Oddly enough, not much difference in sound. Just a smidgen deeper at idle and a bit louder around 3500 RPM and up. Ironically, it got a nice little bump in horsepower that I could feel immediately. I was pretty surprised about that, a little quicker off the line and up on the highway. At this point the car really needs a BAMA tuner to take advantage of all these little tweaks. A near rear end would help a lot too, 2:73's really aren't doing it for me, All in good time however. In closing, I'm not sure if I got as much out of these headers as I had hoped, but I like the horsepower gain. The instructions are pretty pathetic, they're poorly written and illustrated. I've taken a bunch of step by step pictures of my installation and I'm going to send them off to AM in hopes of making the installation a little easier for someone else. One last note, BBK states in the instructions the installation should take about an hour. There's absolutely no way anyone could get this job done in an hour, three hours would seem about right for a mechanic experienced with these cars. Overall the headers were a pretty good purchase

    red2011mustang

    Year: 2011 Submodel: V6 Madison, CT, USA

    Helpful (1)

  • 4/5

    Installation Time: Weekend

    July 19, 2014

    One of the best mods on my Mustang 3.7L engine

    It gives my Mustang better low end torque, better throttle response, better sound, and better engine bay appearance. I have to say it is one of my favorite mods so far. The first set of BBK headers I received had uneven flanges, but AM sent me a new set to get it right. Below are my install instructions in case you find them useful. I bought the OEM gaskets from Ford dealers ($9.50 each at whole sale price). To make things easy, I also removed the strut tower brace, CAI, battery and tray, the starter. I heard many stories about how hard it is to take off bolts connecting the exhaust manifolds with mid-pipe, so I sprayed some WD40 one night before, then it became a piece of cake. The tool I used are a 20 inch long extension, coupled with a swivel joint, and a 15mm deep socket. I used jack stands and some wood to support the mid pipe after they are disconnected from the exhaust manifolds. Taking off the stock manifolds is a 20 minute job. Some of the studs came out with the nuts. After all the studs and nuts come out, I socked them in WD45, took the nuts off by using a 5mm socket and 13mm wrench. Then I installed all of the bolts back to the engine block. For the passenger side, the only headache is the lower rear bolt. The issue is that after the header is installed the top of the bolt is only about 1/4 inch away from the header tubes. What that means is that if you tighten it up all the way using a box end wrench, you would not be able to get your wrench out. What I did is to just hand twist other nuts to the bolts, leaving the header hanging loose. I used my 13mm gearwrench to tighten up about 2/3 length of that bolt, then took out the gearwrench before it is too late. I then tighten up all of the other 5 bolts from above the engine bay by using the 13 mm gearwrench. The lower rear bolt was tightened up with a 13mm open end stubby wrench. I torqued them up in the order of upper middle, lower middle, upper rear, lower rear, upper front, lower front. I used a 13mm line wrench to get this done, and made them as tight as I cold. My hand strength is not as great as that of a gorilla. :-) The driver side is a whole lot easier. The only thing is to maneuver the header to the bolts. I had to disconnect the steering column shaft by removing the bolts towards the firewall in the engine bay. You can use gearwrench for all of the 6 bolts all the way. For the lower rear bolt, I used a stubby 13 mm gearwrench from beneath the car. The correct order to tighten the four mid-pipe bolts on two sides are: lower right, lower left, upper right, upper left. First tighten all of them to 89 lb-in, then increase by 89 lb-in until you reach 30 lb-ft. That's how the service manual says in order to align the exhaust system. The toque for the bolts on the connector between the mid-pipe and the pipe connecting the muffler is 35 lb-ft. Starter bolts: 35 lb-ft. Steering column shaft bolt: 18 lb-ft. Strut tower brace bolts: 26 lb-ft. I am very happy with the results. So far there is zero leak.

    Liv4spd

    Year: 2014 Submodel: V6 Rockville, MD, USA

    Helpful (1)

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