WIN $5,000 For Your Mustang! Enter Now
Talk to a Mustang Expert
1-888-332-7930
Mon-Thu 8:30a-11p, Fri-Sun 8:30a-9p

Free Shipping - Get it by Dec. 24th available on most items - Details

Kooks Performance Cat-Back Exhaust (05-09 GT, 07-09 GT500)

Market Price $877.90 You Save 10% ($87.79)

$790.11

FREE Shipping
  • Item 100515
  • MPN# 11304100

In Stock Ships same business day. Choose options to add to cart

Features, Video & Details

  • Aggressive Muscle Car Exhaust Note
  • 3" Oval Race Mufflers
  • 2.5" Stainless Steel Tubing
  • 4" Polished T304 Stainless Steel Tips
  • Direct Fit Replacement Upgrade
  • Fits 2005-2009 GT, Bullitt and 2007-2009 Shelby GT500 Mustangs

Review & Installation Video

Review & Install Video

Aggressive Exhaust Note. Give your V8 powered Mustang the loud aggressive exhaust note of a classic 60's muscle car with a Kooks Performance Cat-Back Exhaust system, that features oval stainless steel race mufflers.

Durable Stainless Steel Construction. Constructed from 2.5" diameter stainless steel tubing for strength and corrosion resistance, this Kooks Performance Cat-Back exhaust system features two high flow 3" Oval Race Mufflers that end with 4" polished T304 stainless steel slant cut exhaust tips.

Application. This Kooks Performance Cat-Back Exhaust Kit is specifically designed to fit the 2005-2009 GT and  Bullitt as well as 2007-2009 Shelby GT500 models. Technical Note. Will not work with the following Kooks Mid Pipes 6023-CX-3R, 6023-CX-3R-GREEN, 6023-OX-3R

Fitment: 2005 2006 2007 2008 2009 Details

What's in the Box
  • (1) Right muffler assembly
  • (1) Left muffler assembly
  • (1) Right tailpipe assembly
  • (1) Left tailpipe assembly
Installation Info
Tech Specs
Cat-Back Exhaust Specifications
Piping Material: Stainless Steel Tip Material : Polished 304 Stainless Steel
Piping Size: 2.5" Tip Size: 4"
Muffler Type: Race Muffler Fitment: 2005-2009 GT, Bullitt
2007-2009 Shelby GT500
Will it fit my Mustang?
  • GT - 05, 06, 07, 08, 09
  • GT500 - 07, 08, 09
  • Bullitt - 08, 09

Most Helpful Reviews

4/5
Great Note

First and foremost the exhaust note is amazing. I have an entire Kooks exhaust system (Kooks Long Tubes, Kooks Catted X-Pipe, Kooks Catback System picture above) The car isn't as harsh as my previous exhaust ...

Read More
Helpful (3)

5/5
Perfect Exhaust Note But Kinda Pricey

This system is awesome sounding, exactly what I was looking for: louder, deeper and a bit throaty but w/o excessive rasp, popping and crackling. Fit was perfect (muffler shop said it was a really easy ...

Read More
Helpful (1)

Overall Rating 4.6 out of 5 stars
Read All 5 Reviews

Customer Photos (7) Submit Your Photo

View All 7 Photos

You Might Also Like

2 Questions / 2 Answers

Ask a Question

Will these work with my stock headers and stock mid-pipe?

Eddie

  • Yes. They are designed for the OEM connection.

    Kooks Headers

    Good Answer (0) (0)

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

Kooks Headers Will this work with Kook's long tube headers?

GhostRiderGT06

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

More Products You Might Like

Customer Reviews (5) Write a Review

Overall Rating 4.6

out of 5 stars

Installation Time:Full Day

Installation Cost:$100-$250

  • Loudness / Volume 4.2 4.2
  • Exhaust Note 5 5
  • Fit & Finish 4.2 4.2
  • Bang For Your Buck 4.6 4.6



  • 4/5

    Installation Time: Afternoon

    December 04, 2013

    Great Note

    First and foremost the exhaust note is amazing. I have an entire Kooks exhaust system (Kooks Long Tubes, Kooks Catted X-Pipe, Kooks Catback System picture above) The car isn't as harsh as my previous exhaust as it is more of a 'purr' which sounds amazing. My only complaint is the packaging oddly enough which mixed and matched the 'left' and 'right' labels on the piping which made it a little confusing to workout. Additionally, 'left' and 'right' is not a specific enough side labeling technique on a car, use 'passenger' and 'driver.' Regardless, the exhaust note is perfect. Great work Kooks, you never disappoint.

    JaredMoon

    Year: 2007 Submodel: GT USA

    Helpful (3) (0)

  • 5/5

    Installation Time: Afternoon

    July 28, 2015

    Worth The Money

    The exhaust note is perfect. Not too loud at idle, but sounds great when under load. There is a little drone when cruising around 1,900-2,000 RPM, but once you get past that, it goes away. Not that I mind it, but passengers might get annoyed after awhile. Installation was a breeze. Right side fit perfect right out of the box. The left side had to be adjusted and bent the hanger bars to get the right fit. Might have just been the factory brackets as well. All in all, the sound is exactly what I was looking for and worth every penny.

    Segs1177

    Year: 2009 Submodel: GT Fenton, MI

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    June 19, 2015

    Perfect Exhaust Note But Kinda Pricey

    This system is awesome sounding, exactly what I was looking for: louder, deeper and a bit throaty but w/o excessive rasp, popping and crackling. Fit was perfect (muffler shop said it was a really easy install, $150 btw) but there is some slight drone at 2k, I like it but if you drive an automatic like me, just be aware (and its nothing your shaker stereo can't drown out anyway). If you've got the means, I highly recommend but if you need to save cash, try the Ford Racing 500 Stingers for a similar sound from what I've heard online.

    Chops1985

    Year: 2008 Submodel: GT California

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    May 14, 2015

    Excellent Quality

    I bought the Kooks exhaust after being disappointed with another company's product. I read multiple reviews about Kooks and was confident I would not be disappointed again, and I was right! The first thing I noticed was that the welds are spot on. This system was obviously made by professionals who take great pride in their product. Every part of this exhaust, from the pipes to the clamps is fantastic. Install is easy (even someone who has no experience with cars can do it), though it helps to have another person who can help you line it up properly. Finally, the exhaust note is perfect. It is quite loud and burbly. It really has a nice muscle car snarl, especially when you go wide open. I have received multiple compliments (from the neighbors even!) and would not hesitate to recommend Kooks over any other brands!

    CMcNam

    Year: 2007 Submodel: GT MA

    Helpful (1) (0)

  • 4/5

    Installation Time: Afternoon

    December 03, 2016

    Nice sound and quality

    I feel this exhaust has a great sound with stock cats on the car. If I had a off road h pipe or high flow cats it be to loud for my taste. Car runs great, quality is awesome, I wish they had made the hangers on the mufflers longer it's very tough to get them away from the bumper cut outs because they are so short. I bent the driver side to get some more clearance.

    Gordonbizkit

    Year: 2008 Submodel: GT500

    Helpful (0) (0)

Related Mustang Categories