Sale

Air and Fuel Superchargers, Turbochargers and Components

Subaru

Recirculating Bypass Valve

$299.00 $254.15 Save $44.85

SKU: GRM126032BLK

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The GrimmSpeed Bypass Valve is a direct replacement for the factory unit on 2004-2021 Subaru STI and 2002-2007 WRX models. It features a recirculating design that vents boost pressure back into the intake tract.

This performance bypass valve offers more consistent response than OEM components and reliably handles elevated boost levels.

Fitment

Fitment Guaranteed

Don’t gamble
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

BrandSubaru
Part NumberGRM126032BLK
CategoryAir and Fuel

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.

View Full Return Policy