Process West Black Billet Tumbler Generator Valve (TGV) Delete Kit 2001-2007 WRX/STI & 08+STI Drivetrain_Clutch Replacement Parts Our engineers have taken the

Our engineers have taken the ultimate EJ series head stud solution to the next level by incorporating some new features into the RCM 14mm Superstud kit to improve performance and ease of installation for your EJ engine

You will need to cut a hole in the roof to fit this kit

and everything you need to complete install is included in the kit - i

This assembly consists of 3" pipe work which reduces to 2

75mm and 100

Process West Black Billet Tumbler Generator Valve (TGV) Delete Kit 2001-2007 WRX/STI & 08+STI Drivetrain_Clutch Replacement Parts Our engineers have taken theTumbler Generator Valves (or "TGV" as they are most commonly referred to) can be found on Impreza WRX, Forester Turbo and Legacy GT models from 2001 onward. Their prime purpose is to reduce emissions from cold idle to meet standards governed by the EU emissions regulations (similar regulations also exist for both the US and Japan). Whilst this may be good for the environment it does little to aid the performance of your car and it's not uncommon for