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1-7/8″x3″ Kooks Long Tubes (11-14 GT/Boss)

Original price was: $1,201.56.Current price is: $1,081.40.


2011-2014 Ford Mustang GT and Boss 302 1-7/8″x3″ Stainless Steel Long Tube Headers.

Quick Facts:

  • Fits 2011-2014 Mustang GTs and Boss 302
  • Must be used with Kooks X-Pipe or H-Pipe
  • For 5.0L Coyote Engines
  • Tube Size: 1.875″
  • 32 pounds
  • Not for use in emissions restrictive states
  • All gaskets and hardware included




Out of stock



About Kooks Long Tubes

If you’re looking to up the horsepower and torque of your 2011-2014 GT or Boss 302, look no further than Kooks – the industry leader in aftermarket long tube headers. Kooks utilizes aircraft grade T034 Stainless Steel for their products ensuring an unmatched quality and finish. Every Kooks exhaust system is designed specifically for the vehicle or engine it was built for.


Kooks takes advantage of industry leading technology to design every exhaust system they produce. This particular system utilizes 1-7/8″ tuned exhaust primaries which merge into 3″ collectors featuring a specially designed scavenger spike. This ensures the header will have a smooth flow with the greatest amount of airflow possible.

All joints are TIG welded with every port ground smooth to eliminate exhaust constriction. The 3/8″ thick laser cut flanges along with the ball valve flanges work to prevent any exhaust leaks and a better than factory fitment on your GT or Boss 302.


The Kooks 1-7/8″x3″ Long Tube Headers have a natural stainless steel finish. These headers do not have a heat resistive coating. Check out our available exhaust wraps to maximize the performance of these incredible headers.

Will it Fit?

These 1-7/8″x3″ Long Tube Headers are designed to fit all 5.0L Coyote 2011-2014 Mustang GTs and Boss 302s. This system MUST be used with Kooks X-Pipe/H-Pipe or Connection pipes.


  • 1-7/8″x3″ Stainless Steel Long Tube Headers (Pair)
  • 1.875″ tube size
  • Must be used with Kooks X-Pipe or H-Pipe
  •  32 pounds

Important Considerations

Note: These headers are intended for off-road use only! These products are NOT legal for sale, installation, or use on a licensed vehicle in the state of California, and they do NOT meet CARB compliance.

What’s in the Box?

(2) 1-7/8″x3″ Long Tube Headers

All required Installation Hardware and Gaskets


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