Kooks Long Tube Headers 1-7/8" Stainless Steel Mustang GT 2011-2014/ Boss 302 2012-2013



  • 1-7/8" Primaries
  • 3" Collectors
  • Stainless Steel Construction
  • Laser Cut 3/8" Thick Flanges
MSRP $1,327.19
You save 10%

Kooks Stainless Steel 1-7/8" Long Tube Headers for 2011, 2012, 2013 and 2014 GT Mustangs and 2012-2013 Boss 302 Mustangs.

Unleash the full potential of your Mustang's 5.0L 4V engine with the best long tube headers on the market. Kook’s long tubes are made from aircraft quality T304 stainless steel. Kooks only uses the highest quality stainless steel unlike their competitors. 1-7/8" tuned primaries merge into 3" collectors to create the smoothest flowing path.

Each Kooks exhaust system is designed specifically for the engine and vehicle it is built for. Kooks utilizes the firing order of the engine when designing their exhaust tubes. Every system is dyno and race tested to ensure the results are up to Kooks' expectations. This means Kooks can guarantee their exhaust makes the most horsepower and torque in the industry.

Features and Benefits:
- T304 stainless Steel Construction
- 1-7/8” Tuned Primaries
- 3” Collectors with Scavenging Spikes
- Laser-Cut 3/8” Thick Flanges
- Includes all Necessary Hardware
- Made in the USA

*Must be used with a Kooks mid-pipe.

Every collector features Kooks' scavenging spike to ensure maximum flow. Laser cut 3/8" thick flanges ensure no warping or bending occurs. Each port is hand ground to make sure they are perfectly smooth so there is no exhaust constriction. Kooks systems are bolt-in and never require any cutting or welding. All necessary hardware is included with these headers.

California Residents: Proposition 65 Warning

Installation Videos

Video Transcript

We’re here with a pair of Kooks long tube headers for your 2011 through 2014 5.0 Liter Mustang.

These Kooks stainless steel long tube headers will fit your 2011 through 2014 Mustang GT, as well as your 2012 through 2013 Boss 302. They start with a 3/8 inch thick laser cut flange that leads into 1 7/8 inch primaries into a 3 inch collector. The collector has a scavenger spike for maximum exhaust efficiency.

Kooks includes all necessary hardware including two different sets of header bolts for both thread count heads, along with a set of header gaskets. Kooks long tube headers are a great way to make horsepower for your late model 5.0 Liter Mustang and must be used with a Kooks shorty H-pipe or X-pipe.

Vehicle Fitment

This product will fit the following Mustang years:

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