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Stainless Works 2015-20 Mustang GT Long Headers 1-7/8in Primaries 3in High-Flow Cats Factory Connection

Brand: Stainless Works

Part #: SSWM15HCAT

FREE Shipping USA-48 ($200+)

In stock!

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2015-20 Mustang GT headers with 1-7/8" primary tubes, 3" diameter catted lead pipes that mate to the factory connection point. Tig welded 304 stainless steel headers with 3/8" thick flanges and 3" diameter slip fit collectors with merge spikes.This system replaces the factory manifolds, catalytic converters with a superior performing lifetime guaranteed bolt-on system.

This system bolts to the Stock Exhaust (Factory Connect)


  • Add horsepower and torque with this bolt-on upgrade
  • 304 Stainless construction will last a lifetime
  • Smooth mandrel bends optimize exhaust flow
  • Fully TIG welded for strength and beauty
  • Multiple connection options to match your build (ask us)

Not legal for California

This Part Fits:

2019-2020 Ford Mustang Bullitt
2015-2020 Ford Mustang GT
2015 Ford Mustang GT 50 Years Limited Edition
2015-2020 Ford Mustang GT Premium