Air and Fuel› Intake Manifolds and Components

GrimmSpeed

GrimmSpeed 08-20 Subaru STI (EJ25B DAVCS) Head Gasket Set 1.1mm

$169.00

SKU: G00B 124004

In Stock
In Stock
Ships by Jun 9
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The GrimmSpeed Head Gasket Set is a 1.1mm thick replacement gasket designed for Dual AVCS models. It features a multi-layered steel construction with a nitrile rubberized coating on the top layer for enhanced sealing. The enlarged center head bolt holes accommodate up to a 13mm head stud bolt, and the slightly oversized bore diameters allow for up to a 0.5mm overbore.

This set includes two head gaskets and is ideal for replacing OEM gaskets or for engine rebuilding projects. Its construction ensures optimal surface sealing and combustion chamber integrity.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandGrimmSpeed
Part NumberG00B 124004

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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