Installation of long tube headers will require a custom tune to prevent damage to your vehicle. If you already have a custom tune on your Mustang, please consult with your tuner prior to installation and operating your Mustang.
Benefits
Made In The USA
Stock Bolt Pattern
Increases Performance
Improves Exhaust Flow
Features
Round Port
Catted Mid-Pipe
304 Stainless Steel Tubing
1-3/4" Stepped to 1-7/8" Tube Diameter
What's in the Box
(2) Long Tube Headers
(1) Catted X-Pipe
(2) Clamps
Kooks 1-3/4" to 1-7/8" Long Tube Headers W/ Catted X-Pipe Add horsepower and torque that pairs with the throaty exhaust note to your 2014-2020 Mustang GT350 with a set of Kooks headers with catted x-pipe kit! Kooks builds all of its products to the highest standard, and these are quite possibly one of the best long-tube header systems you can buy for your S550 Mustang! As the stock exhaust on your Mustang ages, the catalytic converters can become clogged and rust out, causing exhaust leaks and hindering performance.
Kooks Construction Kooks long tube headers for your Mustang feature 304 stainless steel tubing, the primaries start out at 1-3/4" and stepping up to 1-7/8", and collectors with O2 bungs welded in. Constructed of 16GA 304 stainless steel tubing with standard 300 cell high flow cats will ensure increased airflow and performance over the factory mid-pipe. Ensure the exhaust system on your GT350/R Mustang is performing properly with these made in the USA long tube headers and high flow catted x-pipe from Kooks!
This product is intended for off-road use only, and is not legal for use in emission restrictive states. Off-Road Disclaimer
Kooks - Get Kookin with Kooks
Kooks Custom headers has been making quality custom headers since 1962. Kooks Headers is a family owned and operated company which has prided itself on making the highest, most horsepower production header and exhaust systems for your Mustang & SVT Lightning. From drag to circle track, road racing, motorcycle, and even offshore boats, Kook’s Headers has helped set records and win races. Some of the biggest and most dominant names in NHRA, ADRL, IHRA, NMCA, NMRA, NASCAR, SCCA, and NASA and continue to run Kook’s headers and win championships.