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GrimmSpeed™ OEM Style Gasket, better than OEM quality at an attractive price. 

At GrimmSpeed™ we have worked with endless amounts of aftermarket gaskets, none seem to work as well as the multi-layer steel OEM style gaskets. The issue with the most exhaust gaskets (including OEM) is that even if they're multi-layer, they're not completely constructed of Stainless Steel which leads to leaks. Well GrimmSpeed™ has your answer, premium multi-layer steel w/ stainless steel fire-ring gaskets at a great price.

This product cross-references with Subaru part number is 14038AA000. COMES AS A PAIR

  • 22% Thicker than OEM Gaskets
  • All stainless construction
  • 304 Stainless Steel Fire-Ring


  • All EJ Subaru Turbo Applications
  • FA/FB Subaru Turbo and N/A Applications

9 Reviews

Chase G 3rd Nov 2021

Great gaskets

Installed these for my new header and no leaks at all. Seem like great quality. I had an exhaust leak further down the exhaust where I used a different brand but not where these were. I’ll be using grimmspeed for all gaskets moving forward. Fast shipping too!

Guillermo Sanchez 16th Jun 2021

Great gaskets! Awesome customer service

Since I started modding my car, I had used Grimmspeed gaskets and had no trouble at all. After an USPS snafu and some email issues GS came thru and resent the order, so I recommend buying direct from them as customer service is great! Thx again Marissa!

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