***Due to high demand and supply chain delays our manufacturing lead times are longer than the normal 6 weeks. Expect a minimum of 8-10 week lead time on all Kooks products. We appreciate your patience as we diligently work to fill your order. ***   Kooks 60-41-188

 KOOKS 1 7/8 inch Headers 2011-2014 Mustang GT/BOSS-302, 5.0L 4V

 Full Length, Stainless Steel, 1-7/8 in. Primary Tube, 3 in. Collector,

 HUGE POWER GAINS! Kooks custom headers are, in our opinion,  the best header on the market. These top quality headers are made of T-304 stainless steel and have a 1 7/8” primary tube with 3" collector to match up with your choice of KOOKS mid pipe. Because of the 02 sensor location these headers are very tune friendly. The headers come with O2 extensions, gaskets, and hardware.


Tested on our 2011 5.0 Test Car we picked up a whopping 25 rwhp peak vs. peak and at higher RPM's of 6,800 the gains were just over 30 rwhp. We tested the catted version, design would gain even a few more ponies but at the same time make the car even louder than the high flow cats.  Brenspeed uses KOOKS Headers on all of our NMRA Drag cars, and test cars.


Kooks has been building quality headers for more than 50 years.  Kooks builds all of their parts to the highest standard and when you receive these headers you will see that immediately. Their full length headers are precision built from T-304 stainless steel and are ready to install with the included hardware and gaskets. These Kooks long tube headers can optimize exhaust scavenging and increase power.

 Kooks headers must be used with Kooks intermediate (mid) pipes only.

Convenient 0% interest Financing Available!

We know how hard it can be to come up with a large amount of money to get that Mustang part you have been wanting. To help solve this problem we have found a great way to get your part now and pay later. Brenspeed can now offer financing options for your performance part and even installation!

The process is simple. Just call us and we can go over your options and how to get 3 months, 6 months, or even 12 months same as cash with 0% interest. Now you can get that intake and tuner or even supercharger now and pay for it later. Even if you do not choose to pay the financing off in say 3, 6, or 12 months GE Money will turn your 3, 6, or 12 month same as cash into a monthly payment with a set interest rate.

The entire approval process only takes 5 minutes once we receive your application. Once you are approved we provide you with your product or service immediately. Call us to receive an application and get all the details on this easy to use financing option.

Call us at 574.594.9559 and simply ask for a financing application. We can answer any further questions you may have at that time.