Billet TGV Delete Kit - Subaru 01-07 WRX/STI & 08-14 STI

The Process West Billet TGV Delete Kit eliminates the factory tumble generator valves, removing a significant restriction from the intake path and maximising airflow under all operating conditions.

Precision machined for performance.

The port profile is machined to suit ported cylinder heads, ensuring a smooth, unrestricted transition from plenum to head. The upper flange surface is O-ringed for a reliable, leak-free seal against both stock and aftermarket plenums.

Two length options.

Available in 79mm and 67mm lengths to suit a range of build configurations. The shorter 67mm version is required when fitting a Process West Billet Plenum to a GC8.

Injector and fuel rail compatibility.

Injector ports are machined to accept both 11mm and 13mm diameter injectors without adaptors. Simply use the supplied Viton O-rings to suit your injector size. Fuel rail mounting points match the factory specification, making the kit compatible with stock and aftermarket fuel rails alike.

A precise, well-engineered upgrade for any serious WRX or STI build looking to remove intake restrictions and support higher power levels.