GrimmSpeed Turbo to Downpipe Gasket Most Subaru Turbo Models

After testing countless aftermarket gaskets, we found that nothing matches the reliability of a true multi-layer steel OEM-style design. The problem? Most gaskets—even some OEM units—aren’t made entirely from stainless steel, which leads to premature leaks and failures.

GrimmSpeed solves this with a premium multi-layer steel gasket featuring a 304 stainless steel fire-ring, delivering superior sealing, durability, and long-term performance. At 22% thicker than the OEM gasket, it provides a more reliable seal and improved resistance to high-heat, high-pressure environments—all at an attractive price point.

This gasket cross-references with Subaru part number 144022AA180 and is an ideal upgrade for anyone seeking OEM fitment with enhanced construction and longevity.

Applications:

• 2002-2014 Subaru WRX
• 2004-2021 Subaru STI
• 2005-2009 Legacy GT/Outback XT
• 2002-2013 Forester XT
• All pre-02 Single-Scroll Turbo Subaru Vehicles