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MAC Dual Exhaust Conversion Kit (99-04 V6)

98 Reviews
Our Price

$342.99

  • Item #40048
  • MPN# TK3849

  • Market Price $379.99
  • You Save 10% ($37.00)
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Customer Photos
Features
  • Adds the Look and Sound of a V8
  • Bolts Up to the Stock Factory Y Pipe
  • 2.5" Aluminized Steel Tubing
  • 3" Polished Stainless Steel Tips
  • "Flow Path" Chambered Mufflers
  • Fits 1999-2004 V6 Mustangs
Description
V8 Look And Sound. If you're looking to give your V6 Pony the dual exhaust look and aggressive sound of a V8, look no further than the MAC Dual Exhaust Conversion Kit from AmericanMuscle. 

Flow Path Mufflers. MAC Flow Path Chambered Mufflers feature a patented multi passage design, following Helmholtz's Theory of Tone, to produce a muffler that effectively flows exiting exhaust gases all while maintaining a desirable tone. With no packing that can burn out, Flow Path Mufflers will sound the same mile after mile, year after year.

No Cutting or Welding Required. Unlike other aftermarket V6 dual exhaust kits that require cutting and welding the stock Mid Pipe, the MAC Performance Dual Exhaust Cat-Back system simply bolts right up to the stock Y-pipe for a no hassle installation. Just bolt on and go!

High Quality Construction. Mandrel bent from durable 2.5" aluminized Steel tubing for strength and corrosion resistance, this MAC Performance Dual Cat-Back features two "Flow Path" chambered mufflers with massive 3" diameter polished stainless steel tips for classic muscle car sound and looks.

Application. The MAC Performance Dual Exhaust Cat-Back System is designed as a direct bolt-on to the existing factory Y-pipe on any 1999 to 2004 3.8L or 3.9L V6 Mustang for more power and a more aggressive sound.

Technical Note. When buying a dual cat-back exhaust kit for your 1999-2004 V6 Mustang, you will need to select the "Exhaust Hanger Kit" from the drop down option menu above to properly install your new exhaust.

Installation Note: AmericanMuscle recommends changing to a 1999-2004 GT rear fascia so the tips fit properly.

Fitment: 1999 2000 2001 2002 2003 2004 Details

What's in the Box
  • (1) Y-Pipe
  • (2) Muffler Assemblies
  • (2) Tail pipes
  • (2) Exhaust Tips
  • (2) Clamps
  • (2) Hangers
  • (8) Threaded Studs
  • (8) Nuts
Installation Info
Tech Specs
Cat-Back Exhaust Specifications
Piping Material: Aluminized Steel Tip Material : Polished Stainless Steel
Piping Size: 2.5" Tip Size: 3"
Muffler Type: Chambered Fitment: 1999-2004 V6 Mustangs
Will it fit my Mustang?
  • V6 - 99, 00, 01, 02, 03, 04

Most Helpful Reviews

5/5
Great sound!!

I took a month deciding which exhaust to choose, and by far this is the best one!! My friend and I installed it with not much expirience. I sounds better than a gt in my opinion and looks great without ...

Read More
Helpful (4)

5/5
Video w/ Sound Clips on this Review

I really love this exhaust on my 2000 V6. The only other performance mod I have is the $70 cold air intake also from american muscle. These two parts REALLY shine together. The exhaust has a really deep ...

Read More
Helpful (29)

Read All 98 Reviews
Overall Rating 4.6 out of 5 stars

Customer Photos (56) View All Photos

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23 Questions / 8 Answers

Ask a Question

If I buy the pypes off-road x pipe for the v6, will it work with this system if I remove the y pipe? This system sounds incredible, deep low, mellow tone. not ricey or (ouch) sounding, but I am very curious about adding the x pipe, if I remove the y pipe, would the x with some minor fabrications fit my car? ( I plan on keeping my cats on) or would I run to some serious issues? What would be my main problem with doing this? what would be my best option? thank you very much

Bradley

  • The off road X pipe has no cats , it bolts directly to your header pipes. If you don't buy the X pipe with cats, there's a lot of cutting and welding to keep the original cats on there. Save some headaches and some money and get the complete exhaust system

    rck47

    Good Answer (0) (2)

Show 1 more answer Answer This Question I need this answered (0) (0)

Does this include hangers for the right side?

austinessexy

  • Judging from what I have read and understand about the MAC Conversion Kit the short answer is no. You will need to purchase a hangar kit to ensure proper installment. Pypes Hangar Kit seems to work fine and is not expensive, most exhaust shops will tell you when converting to a true dual exhaust, a hangar kit is essential if you want to actually have that dual exhaust.

    Miket66

    Good Answer (5) (0)

Show 2 more answers Question Resolved

When you install this exhaust, do you have to reset your computer or not? I have been asking people what they would think if I put this kit on my car and they saidt to have a shop do it because of resetting the computer, and thats one thing im not good at.

DylanW

  • This conversion kit won't require a new computer tune after installation! Just install and enjoy!!

    LisaS

    Good Answer (5) (0)

Show 2 more answers Question Resolved

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Customer Reviews (98) Write a Review

Overall Rating 4.6

out of 5 stars




  • 5/5

    Installation Time: Full Day

    April 27, 2013

    Great sound!!

    I took a month deciding which exhaust to choose, and by far this is the best one!! My friend and I installed it with not much expirience. I sounds better than a gt in my opinion and looks great without the bumper cutouts. Overall choose this one if you are still deciding on an exhaust for your v6

    Jake1234

    Year: 2003 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 Colorado, USA

    Helpful (4) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    May 18, 2012

    Video w/ Sound Clips on this Review

    I really love this exhaust on my 2000 V6. The only other performance mod I have is the $70 cold air intake also from american muscle. These two parts REALLY shine together. The exhaust has a really deep aggressive start up and then comes back down to a modest growl as you idle. Accelerating at launch is also nice and loud but again, once you hit your cruising speed it really calms down. I love that it doesn't sound phony like a bottle rocket screaming down the road. VERY happy I invested in this exhaust! As everyone else says, buy the pypes hanger kit in the exhaust section of American Muscle. My mechanic said install was virtually impossible without the hanger kit.

    Stack

    Year: 2000 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 Tucson, AZ, USA

    Helpful (29) (1)

  • 5/5

    Installation Time: Less than 1 Hour

    September 18, 2011

    Loud Start up.

    ordered it on Monday and got it Wednesday morning, cant beat the shipping. this is probably the BEST dual exhaust for your v6, the start up is ridiculously loud and so is the revving. sounds great when your on the road and took about 45 minutes to install, but you NEED TO NEED TO NEED TO order the "Pypes exhaust hanger kit" otherwise you'll never be able to get the exhaust installed.

    Matty597

    Year: 2004 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1

    Helpful (24) (0)

  • 5/5

    Installation Time: Afternoon

    September 21, 2011

    Best Bolt On Exhaust on the Market for the Mustang 3.8 and 3.9

    Great addition to anyones V-6 Mustang. I didn't buy from AM as I got it shipped for $270 from another site, but either way the improvement this exhaust makes is very noticable. Once tuned and in combo with a CAI, it allows the car to have more low end kick especially but throughout the entire RPM range. Sounds its best with said CAI and tune but even without provides a deep rumble at idle and a very nice growl even at WOT. Sound under acceleration is quite noticable inside the car and outside it and even at freeway crusing speeds you can hear its low growl which is very nice (and feel it...the mufflers sit up and in under the body so there is a nice pleasant vibration from them under your feet at higher speeds). Make sure you purchase a hangar kit for this as you need the two rear hangars and an additional front hangar on the RIGHT side (but be aware that this MAC may have hangars that are too thick for the PYPES kit, see my review of that part regarding that). Installation is easy for any muffler shop and can be done by a DIY person though I would advise two people if you're not using a lift. Of course you are not going to get the sound or performance of an H pipe with this, but you also don't have to cut, weld or mod anything to use this...and you'll stay emission compliant. I would say if you want a nice throaty sound for your V-6, a bit more performance, something that looks really good and you don't have alot of cash, this is the best exhaust out there. If you shop around for the unit AND for the labor, you should be able to get this on your car for under $400-I did it for $350...well worth it.

    ucdavis4PT0gpa

    Year: 2004 Model: V6

    Helpful (13) (0)

  • 5/5

    August 11, 2011

    Best for the price

    First of all, I ordered this somewhere else but wanted to put my review here. The exhaust sounds amazing & looks great. Now I always have my windows rolled down because I love the sound. Especially when you start it now I am actually proud of my v6 now. I highly recommend this turns heads too. Oh and also I did this with jack stands so it is possible with them.

    Michael

    Year: 2000 Model: V6 Driving Style: Daily Driver

    Helpful (11) (0)

  • 5/5

    July 06, 2011

    Good Mod, Worth the Money!

    Likes: - Easy Install - Great Price for Quality Construction - Throaty Sound - Fits well under V6 bumper (Pypes hanger kit) Dislikes: - needs to have slip joint at muffler vice weld. This limits necessary tweaks to clear frame, drive shaft and control arms. Not a big deal but does limit perfect fit. See pics, about 1/2 inch low rt side

    John Lasseter

    Year: 1999 Model: V6 Driving Style: Daily Driver

    Helpful (11) (0)

  • 5/5

    May 16, 2011

    MAC Y-Pipe Exhaust

    I didn't purchase this exhaust from AM as they've just started carrying it, but if you're looking for what I believe is the best sound throughout the entire band for a stock/slightly modified V6 then stop here, this IS what you're looking for! Be sure to pick up some new exhaust hangers while you're at it and install will be a breeze.

    Chris

    Year: 2001 Model: V6 Driving Style: Daily Driver

    Helpful (9) (0)

  • 5/5

    May 18, 2011

    MAC Catback

    Best recommended exhaust for the V6. I was very pleased with the sound. No rasp, just low growl. Didn't purchase from AM as i got it about a year ago. Very easy install, make sure you have GT hangers. Highly recommend!

    Lance

    Year: 2003 Model: V6 Driving Style: Daily Driver

    Helpful (10) (1)

  • 5/5

    Installation Time: Less than 1 Hour

    December 17, 2012

    Great buy for the money

    If you're looking for a good upgrade to you V6 in this price range, don't even think twice about buying this. My car went from having virtually no sound to turning heads everywhere I go. The start up is loud and the sound emitted from stepping on the accelerator is a deep, aggressive rumble. Install time was about 40 minutes but that's because my uncle works at a Ford dealership so we put it up on a lift and had the best tools for the job. As stated in other reviews, you also have to buy the hanging kit but other than that this is a GREAT modification. I bought the SLP Loudmouth II mufflers to put on as well but have yet to get them welded on, I'm actually not even sure if I want to change the sound now..

    SeanH

    Year: 1999 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 Philadelphia, PA, USA

    Helpful (5) (0)

  • 5/5

    Installation Time: Afternoon

    May 01, 2012

    Love it!!

    Love the tone! It took me a while to choose between true duals or this and im happy with my choice! Best sound is around 2500 to 3000 rpms, and cruising at around 1300rpms. Great bang for the buck!

    Crysta06

    Year: 2001 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 Concord, NC

    Helpful (4) (0)

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