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Kooks Header and Catted X-pipe Combo - Manual (05-10 GT)

12 Reviews
Our Price

$1,460.52

  • Item #65500
  • MPN# 6020-CX

  • Market Price $1,606.99
  • You Save 9% ($146.47)
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Customer Photos
Features
  • Increase rear wheel horsepower and torque
  • Includes headers w/ matching catted X-pipe
  • 304 stainless steel construction
  • High flow catalytic converters
  • Free flowing Mandrel-bent tubing
  • Fits 2005-2010 Manual GT Mustangs
Description
Improve Horsepower And Torque. The Kooks Long Tube Header and Catted Shorty X-pipe combo kit for the manual 2005 to 2010 GT Mustangs will balance out the exhaust pressure to increase flow over the restrictive stock factory exhaust system resulting in more horsepower, torque, and better throttle response.

Quality Construction. Manufactured from 1-5/8" mandrel bent 304 stainless steel tubing Kooks Long Tube Headers are TIG welded for strength, and feature a leak-free ball flange design to fit perfectly into the included 2.5" diameter 304 stainless steel Shorty X-pipe for excellent exhaust flow and performance.

Recommended Upgrade. To realize the full power potential that this Header and X-pipe combo kit has to offer, AmericanMuscle recommends a custom tune with a Mustang Handheld Tuner to reprogram the vehicles computer (ECU) for proper operation.

Application. This Kooks Header and matching catted X-pipe combo kit is designed specifically for the 2005 to 2010 4.6L GT and Bullitt Mustangs equipped with a manual transmission. Includes gaskets and 02 extensions.

Mustang Fitment: 2005 2006 2007 2008 2009 2010 Details

What's in the Box
Hardware included:
  • Headers
  • Mid Pipe
  • Gaskets
  • 02 Extensions
Installation Info
Tech Specs
Header Specifications
Header Type: Long Tube Finish : 304 Stainless steel
Type Mid Pipe Required: Kooks Shorty X Fitment: 2005-2010 GT - Manual


Mid Pipe Specifications
Style Mid Pipe: Shorty "X" Type Headers Required: Kooks Long Tube
Piping Material: 304 Stainless Steel Piping Size: 2.5"
Catalytic Converter: "Yes" Fitment: 2005-2010 GT - Manual
Fitment
  • Bullitt - 08, 09
  • GT - 05, 06, 07, 08, 09, 10

Most Helpful Reviews View All

Overall Rating 4.9/5 Write a Review
5/5
KOOKS HEADERS COMBO

I LOVE THE KOOKS HEADERS CATED PIPE COMBO SOUNDS GREAT IN EVERY GEAR, AND THIRD CRYES HARDER. THEY WERE A PAIN TO INSTALL, A LIFT WOULD MAKE IT EASIER TO INSTALL BUT TOTALLY WORTH IT!!!!

Helpful (10) (2)

4/5

Top 1000 Contributor

Expensive Header Kit, fit could be better for the price.

Passenger side header hits the frame under the hood. Some cars have this issue some cars don't. Guess i'm one of the unlucky ones. For the price you pay you would think Kooks would have the BEST fitment

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Helpful (8) (1)

Customer Photos (4) View All

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Q & A (5 Questions, 6 Answers) Ask a Question

will i need to retune my computer when installing these

delrosso95 Year: 2005 Model: GT

Question Resolved
Good Question (0) (0)
  • You could run these without tuning but you would probably loose HP because of lean fuel conditions at WOT. Any good tuner will allow you to make corrections or buy tunes for different mods. These headers are great and with a cold air intake and more fuel your HP will go way up, run cooler and more efficient.

    Helpful (4) (0)

    Best Answer

    Igore Year: 2008 Model: Bullitt

    Top 250 Contributor

Show 2 more answers

ehaust will the kooks header and catted x-pipe combo manual set up hook to my flowmaster ehaust. Also do i have to use that serten type of tunner or can i use any tunner.

RD22 Year: 2006 Model: GT

Question Resolved
Good Question (1) (0)
  • Yeah, they will fit! You can use every tuner you want.

    Helpful (0) (0)

    Ge87 Year: 2009 Model: GT

Show 2 more answers

Did the dyno image in the picture include a tune? Does the image of the dyno run in your product images include a BAMA tune or any other parts? Or was it otherwise bone-stock?

Donnie37 Year: 2007 Model: GT

Be the First to Answer This Question
Good Question (0) (0)

Reviews (12) Write a Review

  • 5 Stars .92 92%
  • 4 Stars .08 8%
  • 3 Stars 0 0%
  • 2 Stars 0 0%
  • 1 Stars 0 0%
4.9

out of 5 stars

11 Customers Recommend this Product

Installation Time:Weekend

Installation Cost:$100-$250

  • Loudness / Volume: 4.636364 4.6/5
  • Exhaust Note: 4.727273 4.7/5
  • Fit & Finish: 4.545455 4.5/5
  • Bang For Your Buck: 4.545455 4.5/5
Filter By Sort By
  • 4/5

    December 07, 2011

    Expensive Header Kit, fit could be better for the price.

    Passenger side header hits the frame under the hood. Some cars have this issue some cars don't. Guess i'm one of the unlucky ones. For the price you pay you would think Kooks would have the BEST fitment in all cars. The fix is installing Prothane engine mounts to stiffen the engine up from moving around under load.

    Top 1000 Contributor

    0neQwkStang

    Year: 2006 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 2 Ontario, Canada

    Helpful (8) (1)

  • 5/5 Yes, I recommend this product

    April 17, 2011

    KOOKS HEADERS COMBO

    I LOVE THE KOOKS HEADERS CATED PIPE COMBO SOUNDS GREAT IN EVERY GEAR, AND THIRD CRYES HARDER. THEY WERE A PAIN TO INSTALL, A LIFT WOULD MAKE IT EASIER TO INSTALL BUT TOTALLY WORTH IT!!!!

    FERNANDO

    Year: 2006 Model: GT Driving Style: Daily Driver

    Helpful (10) (2)

  • 5/5 Yes, I recommend this product

    November 13, 2011

    Passenger side header hits frame.

    Passenger side header tube hits the frame rail when you make hard left hand turns.

    OneQwkStang

    Year: 2006 Model: Other Driving Style: Street / Strip 'Stangs I have owned: 2 Ontario Canada

    Helpful (6) (2)

  • 5/5 Yes, I recommend this product

    September 27, 2011

    Great product

    installation was about 6.5 hours with all the tools needed, included lift. Great quality, not too loud. A totally different kind of sound.

    Ge87

    Year: 2009 Model: GT Driving Style: Daily Driver Italy

    Helpful (4) (1)

  • 5/5 Yes, I recommend this product

    March 24, 2012

    Kooks Headers

    If your looking for long tube headers this is the way to go. They sound amazing the power gains in the mid to high rpm are amazing. I have this with the fr500 muffler and I love the mix of the too. In my opinion these are a must have if you want a awesome sounding exhaust.

    Razo

    Year: 2008 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 3

    Helpful (3) (1)

  • 5/5 Yes, I recommend this product

    November 13, 2013

    Awesome Power / Great Sound

    I love this package. I replaced my shorties with these Kook LTs and I couldnt be happier. Not only is the exhaust note very powerful but the power increase when combined with my CAI, FR TB, FR Intake Manifold, and Bama Tune put me at a dyno-ed 330 HP to the wheels. Good job Kooks.

    JaredMoon

    Year: 2007 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 1 USA

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    March 23, 2012

    Great Buy!

    These headers are top notch in fit and finish! Took the shop a full day to install and tune the car. It was well worth the wait! The exhaust note coming from the magnaflows deserves to be on a ring tone! Noticeable power gains throughout RPM's. Had the car dynoed after and with some bolt ons and ford racing throttle body I put down 320 RWHP and 330 RWTQ in my 2010 stang! Forced my buddy with a Camaro to go out and put cams and headers on his so he wouldn't get outran! Lol! As usual fast shipping and great customer service from A.M! !! Don't hesitate on buying these because you won't be disappointed!!

    Stallion10

    Year: 2010 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 Atlanta, Ga

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    March 02, 2012

    Kooks Header and Catted X-pipe Combo - Manual (05-10 GT)

    The superior fit and finish of the Kooks Headers and the catted X-pipe is AWESOME! It woke up the car!

    Top 250 Contributor

    LMitchell

    Year: 2006 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 3 Sumter SC

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    May 03, 2013

    Worth the Money and Time

    Install: The installation was tough on jack stands, but having never touched an exhaust system before, it was pretty straight forward. It might seem intimidating, but it's just time consuming. The only complaint I have about fitment is that it seemed impossible to get a torque wrench on every header bolt. However, I haven't had a problem with leaking and I've had them on for almost a year now. Just make sure you get them tight, and turn them again after the first drive while they're still warm. Sound: I initially had flowmaster mufflers with these (not sure what model, they were put on by the previous owner). I lived in an apartment complex, and even with Hot Rod cams, the flowmasters kept it quiet. I have since switched to the FR500s axle back and it is much louder, pops on deceleration, and pretty much sounds like an animal. If you are worried about volume, don't be. Even with the FR500s, I can still creep around under 2000 rpm and keep her quiet in the neighborhood. It's the cold starts that really make noise :D Performance: With this exhaust system, the Airaid Race intake and a Bama tune (no Hot Rod cams), I shaved off .95 seconds on my best stock ET with back to back trips to the track. Enough said.

    Josh1

    Year: 2006 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 2 Houston, TX

    Helpful (0) (1)

  • 5/5 Yes, I recommend this product

    June 02, 2012

    The product incresed overall performance

    Excellent product, a bit hard to install due to the lack of space LOL. perfect fit, looks great and sounds wicked. american Muscle quick delivery and support is the best!!!!!

    Milt

    Year: 2010 Model: GT Driving Style: Show 'Stangs I have owned: 1 Germany

    Helpful (0) (1)

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