GrimmSpeed Head Gasket Set 1.05mm - Subaru Models (inc. WRX 2015 - 2020)
GrimmSpeed Head Gasket Set 1.05mm - Subaru Models (inc. WRX 2015 - 2020)
GrimmSpeed
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PRODUCT DETAILS
RallySport Direct proudly carries a great selection of quality aftermarket performance products brought to you by GrimmSpeed.
Here, you are looking at the GrimmSpeed Head Gasket Set. These head gaskets are made using premium materials and are available in a variety of sizes in terms of thicknesses, and are ideal for those who need to replace the OEM head gaskets, or who are tackling the project of rebuilding the top end of the engine.
DETAILS:
- 1.05mm thickness
- Multi-layered steel construction
- Nitrile Rubberized Coating on the top layer
- Folded stopper layer on the gasket edge
- Enlarged center head bolt holes to accommodate up to a 13mm head stud bolt
- Slightly oversized bore diameters will allow up to a 0.5mm overbore
- Will work with up to an 86.5mm bore
- Compatible with both FA20A and FA20B engines
- Sold as a set of head gaskets
WHY WE CARRY THIS
We only list parts we’d run ourselves or recommend to a friend building a real car. If it feels vague, unverified, or inconsistent, it doesn’t make the cut.
- Fitment-first mindset — no “universal” roulette
- Brand reputation matters — we favor proven manufacturing
- Support that actually responds with real answers
WHAT TO EXPECT
This is the clean path: correct fitment, clean install, and results that match the intent.
- Install-ready experience with correct mounting where provided
- Finish that holds up to real driving, not just photos
- Selections on this page drive the exact fitment shipped
TRUST, BUILT INTO THE PROCESS.
Anyone can list parts. We curate what belongs on a serious build. Our goal is simple: fewer surprises, cleaner installs, and confidence when you hit “Buy.”
Fitment checked
We prioritize vehicle-specific listings and clear selection logic so you’re not gambling on compatibility.
Brand discipline
Proven manufacturing and consistent quality matter more than hype. We bias toward what actually holds up.
Real support
If you have a question, you’ll get a human answer that helps you finish the build — not a copy-paste shrug.
RallySport Direct proudly carries a great selection of quality aftermarket performance products brought to you by GrimmSpeed.
Here, you are looking at the GrimmSpeed Head Gasket Set. These head gaskets are made using premium materials and are available in a variety of sizes in terms of thicknesses, and are ideal for those who need to replace the OEM head gaskets, or who are tackling the project of rebuilding the top end of the engine.
DETAILS:
- 1.05mm thickness
- Multi-layered steel construction
- Nitrile Rubberized Coating on the top layer
- Folded stopper layer on the gasket edge
- Enlarged center head bolt holes to accommodate up to a 13mm head stud bolt
- Slightly oversized bore diameters will allow up to a 0.5mm overbore
- Will work with up to an 86.5mm bore
- Compatible with both FA20A and FA20B engines
- Sold as a set of head gaskets
