Precision Works Billet TGV Housing Subaru WRX 01-07 & STi 08-17 stage 1 Measured at Secondary Lobes @

Measured at Secondary Lobes @ 0

Each piston is precision-machined with anti-detonation grooves and forced pin oiling to improve ring seal and overall performance

Up to 250HP 60A Red

Another notable feature is upgraded stainless steel swivel support tubes (OEM are plastic) known to break on the factory cables

Precision Works Billet TGV Housing Subaru WRX 01-07 & STi 08-17 stage 1 Measured at Secondary Lobes @Billet 6061 aluminum Increases air flow to the cylinder heads Precision CNC machined Billet 6061 aluminum Anodized silver Includes hardware & o rings Works with both 11mm or 13mm diameter injectors Factory fuel rail mounting points