Kooks 4.6L Mustang Long Tube Headers 1-5/8 in (05-10 GT Automatic)

2 Review(s)
$116.39 (10%)
Part Number: 515 11312010

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New Part Number: 515-11312010 - (was 515-6020ACX)

Kooks Custom Headers set the standard for the header and exhaust industry. Kooks kits come with everything you need for the install, including O2 extensions and high-quality Percy's gaskets. All of Kooks products are hand made here in the USA using premium stainless steel.

Warning: Not approved for sale in California or states that require a California E.O. #. This part has been designed and is intended for off-road application only. Installation of this part on a vehicle that is driven on public roads may violate U.S. and Canadian laws and regulations.

Note: Federal and several state and provincial laws prohibit the removal, modification or rendering inoperative of any part that affects emissions or safety on motor vehicles used on public streets or highways. Steeda Autosports assumes no liability for any violations arising out of any federal, state or provincial emissions or safety requirements on motor vehicles arising out of the customer's modifications and/or use of Steeda products. It is the responsibility of the customer to determine if their modified vehicle complies with applicable laws.

This limited warranty is the only express warranty applicable to Steeda Autosports products. Other rights may arise or vary from state to state in the United States. Steeda is not responsible for any time for which you may lose the use of your vehicle, any inconvenience you might be caused, the loss of your transportation or any part thereof, or any other incidental or consequential damages you may have.

Product Benefits
  • Increased horsepower and torque
  • Great sound and fitment
  • Made from high-quality stainless steel in the USA

CA Residents: Cancer and Reproductive Harm WARNING www.p65warnings.ca.gov.

Fitment & Features


Manufacturer: Kooks Exhaust

Installation Information:

Level of Difficulty: Medium
Install Time: About 8 Hours
Tools Required: Basic Shop Tools

Vehicle Fitment:

Fits Model Year: 2005, 2006, 2007, 2008, 2009, 2010

Customer Reviews

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Average Customer Ratings


Excellent Low End and Awesome Sound
I wanted to wait and drive a bit before I reviewed the Kooks Long Tube Headers. I installed the Kooks LTH's and H-Pipe on my 2010 GT in September, and it was totally worth it. My low end gains are very noticeable and the sound is awesome especially through the Flowmaster Outlaws. My first test was on the dyno. When your mustang is in the middle of a pull and everyone is plugging their ears... well, what can I say other than success! My second test was the Arkansas Dragon and Pig Trail. One word... Awesome! However, I see a brake upgrade in the future. Like Others that have installed LTH's, doing them on jack stands is doable, but a major pain. The other thing that I don't recommend is doing them by yourself. I had well over the typical indicated time (8 hours) before I enlisted the help of a friend. I absolutely recommend the Kooks Long Tube Headers and H-Pipe.
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Verified Buyer   from Blaine, MN on 11/5/2017
Superb combo!
This is a conveniently priced/paired combo! Long tubes really deepen the exhaust note!
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from Georgia on 7/3/2012
There are no reviews for this product!

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