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SLP Catted X-Pipe (05-09 GT)

Market Price $399.95 You Save 4% ($16.00)

$383.95

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  • Item 23022
  • MPN# M31538

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Features & Details

  • Increases Horsepower and Torque
  • Race Car Growl
  • Three-Piece "Modular" Design
  • High-Flow Catalytic Converters Included
  • 2.5" Mandrel-Bent Stainless Steel Tubing
  • Fits 2005-2009 GT and 2008-2009 Bullitt
More Power and Torque. The SLP X-Pipe uses free-flowing mandrel-bent tubing with a genuine X style crossover and high-flow catalytic converters to provide a significant increase in horsepower and torque over the restrictive factory catted pipes.

Race Car Growl. This free flowing SLP x-pipe for the 2005 to 2009 Mustang's not only increases power, but it also adds a raspy, race car growl to the sound of your exhaust with its modern "X" crossover pipe design.

Upgradable Modular Design. SLP's exclusive three-piece modular design makes it possible to easily upgrade to SLP's Long-Tube Headers without the need of purchasing a brand new X-Pipe by just removing the down pipes. This unique modular design also makes it easy to install this X-Pipe on your Mustang with just basic hand tools.

Quality Stainless Steel Construction. Constructed entirely from 2.5" mandrel bent stainless steel tubing for improved exhaust flow, this SLP Mid Pipe features a true "X" crossover, not a poor-flowing clam shell imitation that other companies use. The included SLP High flow cats far out perform the restrictive factory catalytic converters to increase rear wheel horsepower and torque.

Application. This Catted X-Pipe from SLP is designed as a direct bolt-on for the 2005-2009 GT and 2008-2009 Bullitt Mustangs with either aftermarket short tube headers or the factory manifolds and a dual catback exhaust installed.

Fitment: 2005 2006 2007 2008 2009 Details

What's in the Box
Hardware included:
  • (8) band clamps
Installation Info
Tech Specs
Mid Pipe Specifications
Style Mid Pipe: Standard length "X" Type Headers Required: Shorty
Piping Material: Stainless Steel Piping Size: 2.5"
Catalytic Converter: "Yes" Fitment: 2005-2009 GT Mustangs
Will it fit my Mustang?
  • Bullitt - 08, 09
  • GT - 05, 06, 07, 08, 09

Most Helpful Reviews

5/5
Nice

Got this with pypes exhaust and the sund is a new evil mustang. Great price.

Helpful (1)

4/5
Great sound!

WOW! this xpipe really woke my 07 GT up.It sounds great and i do feel a power increase in the upper rpms.Overall the car flows so much better now! Only complaint i have is that i didnt know the CATs hang ...

Read More
Helpful (1)

Overall Rating 4.7 out of 5 stars
Read All 18 Reviews

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7 Questions / 8 Answers

Ask a Question

Will this item work with SLP Axle-Back Exhaust? I have a 2008 Ford Mustang GT/CS with SLP Axle-Back Exhaust (muffler delete) installed. I want to replace my factory H-Pipe with an X-Pipe. The description states, "This Catted X-pipe from SLP is designed as a direct bolt-on for the 2005-2009 GT... with either aftermarket short tube headers or the stock factory manifolds and a dual catback exhaust installed." It says catback not axle-back. Does that mean it won't fit on my car? Plus, do I need to replace my catalytic converters? Should I stick with the same brand as my exhaust?

Nadrenee

  • It will fit on your car, no you won't have to replace the cats because they already come with the thus the "catted" part, and he's you should because not all brands work together like For example don't get BBK headers and pypes long tube headers x pipe just stuck with the same brand. So if you're planning on doing long tube headers in the future don't worry about these just get the headers and x pipe at the same time.

    JamesBrightwell

    Good Answer (0) (0)

Answer This Question I need this answered (0) (0)

Will slp x-pipe work with other brand long tube headers?

khankerson528

  • It's better to stick to the same brand and not try to mix and match. This ensures proper fitment as they were meant to be installed together. I wouldn't suggest mixing brands.

    danny21550

    Good Answer (0) (0)

Answer This Question I need this answered (0) (0)

tuneing Do you need tune

midknight

  • A tune isnt needed however power production and fuel mileage wont be as good as it could be with a tune. i would highly recomend a tune

    kriscudmore

    Good Answer (3) (0)

Show 2 more answers Question Resolved

will this fit on a 2007 v6 mustang that already has the dual exhaust??

SallyStang

  • The SLP Catted X-Pipe (05-09 GT) will be able to work with a 2005-2009 V6 Mustang that has a dual exhaust. The piping is the same size at 2.5" so they will not have to be welded or modified to match one another.

    KevinD92

    Good Answer (0) (0)

Question Resolved

Will these work with stock headers

NVCJ93

  • The SLP Catted X-Pipe will bolt right up to factory headers with no issues!

    SalC7

    Good Answer (0) (0)

Question Resolved

what headers will work with this x-pipe because unfortunately SLP does not make headers for the 3v 05-09 mustang gts and if no other headers can go with it then what would work in this case

will

  • The SLP Catted X-Pipe (05-09 GT) will bolt on to either aftermarket short tube headers or the factory manifold. This X-Pipe features a 2.5" tubing, so as long as the headers have the same size, there should be no issues when installing them. If you do decide to go along the route of different size headers, or ones that say they only fit stock mid pipes, you may have to do some welding for a proper install.

    AshleyK

    Good Answer (0) (0)

Question Resolved

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Customer Reviews (18) Write a Review

Overall Rating 4.7

out of 5 stars

Installation Time:Full Day

Installation Cost:$100-$250

  • Loudness / Volume 4.5 4.5
  • Exhaust Note 4.8 4.8
  • Fit & Finish 4.2 4.2
  • Bang For Your Buck 4.9 4.9



  • 3/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    October 11, 2015

    Good but....

    Had a muffler shop do the install which was no issue. Bolted right up to the Pypes catback.. The reason for the low rating on fitment is this: These pipe hang looow.. My Mustang is stock height and I am having issues with bumps and ramp when driving day to day. I love the muscle car look which is why my car is stock height. I only plan to get new shocks, sways and control arms. I can only imagine most who love to lower their Mustangs and have these pipes installed driving day to day. So please be warned.. Other than that, fit and finish is fine, The sound is lovely and performance combined with the exhaust intake and Bama is the power I have been looking for.

    BEAU

    Year: 2005 Submodel: GT Carson, CA

    Helpful (1) (0)

  • 4/5

    Installation Time: Full Day

    August 02, 2015

    Great sound!

    WOW! this xpipe really woke my 07 GT up.It sounds great and i do feel a power increase in the upper rpms.Overall the car flows so much better now! Only complaint i have is that i didnt know the CATs hang so low. My car is lowered 1.5' all around so going over bumps you really need to becareful. Other then that great product!!

    Butrico22

    Year: 2007 Submodel: GT Brooklyn, NY

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    March 14, 2015

    Nice

    Got this with pypes exhaust and the sund is a new evil mustang. Great price.

    Karl578

    Year: 2005 Submodel: GT Suisun, CA

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    February 21, 2014

    SLP catted x-pipe

    I recently was looking at some different x-pipes for my 08 stang and came across the slp, bassani and magnaflow. I had flow master in mind to but it doesn't sound all that nice. Just not the right notes. So instead I did some research on the potential gains and rumbles of these exhaust and it brought me too two choices MF or SLP. After calling American muscle first hand, George was very helpful with pointing out the cons and pros of these exhaust and places that might be of help with the fine tuning of installing it. It was such a help to know that these people actually care. I eventually went with the more cost friendly exhaust (slp) and it came out beautiful. You get that loud raspy pitch from the middle of the car and then axle back i have a magnaflow exhaust which gives it a deeper rumble. The best part is you can actually feel the gains come from the less restrictive pipes! I used bama tunes as well to help with the tuning! (SF3/X3 tuner) Well worth the money as well.

    GarrettS

    Year: 2008 Submodel: GT Buffalo, NY, USA

    Helpful (3) (0)

  • 5/5

    September 11, 2009

    SLP

    Just installed this with my slp loudmouths and its insane it sounds clean and powerful definitely not for someone who wants a quiet car

    Marc

    Helpful (3) (0)

  • 5/5

    October 13, 2007

    Nice Exhaust pipe for Nice Price

    SLP makes great sounding and power exhaust components! Cheapest price found only on American Muscle! Would recommend to everyone!

    Anthony Kinthiseng

    Helpful (2) (0)

  • 5/5

    October 22, 2010

    SLP Exhaust System

    Guy's I hope to here some response to this. I bought the SLP cats, x-pipe and loud moouth rear pipes(no mufflers). I took my 2008 GT Mustang to a speed shop for Dyno and my check engine light stays on now. I was informed by the speed shop that SLP's are notorious for this problem as the cats are to sensitive. they suggested a $1200. pro street computer that would tweak and resolve the problem. I called A M and they said for me to send my Diablo info and car computer info and they would write me a temporary chip to turn off the O2 sensor. But I will be a problem come Smog time next year. I called SLP and they informed to take my car to a muffler shop and have them check the left exhaust pipe that comnnects to the header maifold as they suspect exhaust leaks. My Diablo alarms indicate to rich bank 1 to rich bank 2 and ODB alarm. Please help me in which direction to pursue. Since the SLP is a clamp on modular systen I personaly would suspect exhaust leaks. You or anyone else experiencing this problem may respond to realjack@earthlink.net

    Jack Howe

    Year: 2008 Submodel: GT

    Helpful (5) (3)

  • 5/5

    Installation Time: Less than 1 Hour

    August 20, 2015

    Awesome Product!!!

    Just installed on Saturday to pair with my Flowmaster American Thunder CBE and WOW! Sounds incredible! This paired with 4:10 gears, CAI, and BAMA Race tune = Holy GOD! Install was a breeze on the lift. Hardware worked as anticipated. I was stoked that I didn't see a Check Engine Light when I started it for the first time.

    JohnnyRaincloud

    Year: 2008 Submodel: GT San Diego, CA

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    October 15, 2014

    Great product with Great sound

    got slp catted x-pipe installed with the slp loudmouth, and the result was so amazing. it is quite in regular driving and so loud once you put the gas down. i highly recommend this x-pipe

    Fawaz20

    Year: 2008 Submodel: GT Cookeville, TN, USA

    Helpful (1) (0)

  • 5/5

    April 06, 2011

    SLP catted x pipe

    This x pipe went on not too easy but easy enough, i have it on my 08 gt with borla stingers and it sounds amazing! I get a lot of compliments on my cars sound and the catted x pipe was one of my favorite additions to my car! The only problem is my car is lowered so the cats scrape on most bumps so i gotta go at an angle to avoid damage, but definitely worth it!

    Michael

    Year: 2008 Submodel: GT

    Helpful (2) (1)

  • 5/5

    August 04, 2008

    Awesome X-Pipe

    Bought the SLP x-pipe a couple months ago, been very satisfied ever since I installed. Pretty simple installation, the hardest is getting to the top bolt of factory h-pipe that connects it to the headers. Fast shipping and the best price through American Muscle! Great sounding catted X-Pipe!

    Robby

    Helpful (2) (1)

  • 5/5

    July 11, 2008

    Loudest ever

    It was a pain to install, but the sound afterwards makes up for it! Love it recommend it.

    Raul Gomez

    Helpful (1) (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    May 17, 2014

    SLP Catted X and SLP Loudmouth

    After several days of reading and then talking to a Tech at American Muscle, I decided to go with the SLP Catted X.The sound changed dramatically from the stock H and cats. Absolutely incredible sound notes, extremely LOUD, snarly and raspy, with the Loudmouth axel back combination. It sounds like an American muscle car should. Again, this is LOUD, if you have any concern about being too loud, this is NOT for you. Pro shop installed, all welds, no clamps, no leaks, $150. NO problem with check engine light, and passed Tennessee strict emissions test 1 hour after install. I couldn't be more happy!!

    TacticalTN

    Year: 2008 Submodel: GT Tennessee, USA

    Helpful (0) (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    November 18, 2016

    Power!

    Just had Fastlane Motorsports install this carted x pipe, its paired with Borla S exhaust. Sounds the same or maybe a little less agressive at idle but my 07 GT/CS really turns heads through the gears! I can really tell a huge power gain as it feels like my car got some nasal spray and opened up the airways! Immediate difference, louder and drives smoother, well worth my $500! Great product as I am very picky and had my doubts

    Twilson

    Year: 2007 Submodel: GT

    Helpful (0) (0)

  • 3/5

    Installation Time: Less than 1 Hour

    October 21, 2016

    Amazing sound SLP

    The things sound amazing. Just I use Tien S Tech springs and man do these thing hang low I scrap everywhere and even on a little bit of the uneven roses wth.. took it to a shop to install for 100$ and next fay coming back to have them a little modified and I still scrape there goes 100$ down the drain. This is frustrating.

    KingDJ

    Year: 2006 Submodel: GT

    Helpful (0) (0)

  • 4/5

    August 31, 2016

    Fire breathing Monster

    This was the right purchase for me. The sound is great. Real loud once you open it up. Has a real muscle car feel to the sound. The Slp catted pipes with Slp loudmouth tips work great together! Love the new mod!

    Grimreaper

    Year: 2005 Submodel: GT

    Helpful (0) (0)

  • 5/5

    Installation Time: Afternoon

    June 24, 2016

    Easy installation, less than 2 hours! Great sound Improvement

    Great Product! I was wondered if I would lose any torque even tho I was suppose to gain HP. We did mine on a lift and install was a breeze, we did weld the cats to the x-pipe and the down pipes to make sure we didn't have any leaks, I only did that because of a couple previous reviews mentioning leaks. So far I am very happy, sound is very crisp and deep, a lot more than I had before and the car feels like it may be a little more responsive as well. A Very happy with the cost and the quality of the kit.

    TechGuy2

    Year: 2007 Submodel: GT

    Helpful (0) (0)

  • 5/5

    Installation Time: Shop Install

    January 21, 2015

    INSANE

    Before I installed the SLP catted X-pipe, I had the Roush extreme performance catback on, but it wasn't loud enough. After doing research I decided this was the one, and boy am I happy. Now people know I have arrived before they even see me. Don't buy this if you have sensitive neighbors!

    windvielblueGT

    Year: 2007 Submodel: GT Maryland, USA

    Helpful (0) (0)

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