The Kompact Dual Port blow-off valve is a direct replacement for the stock bypass valve on the VW Golf MK7 GTI/R. Standard valves crack with age and heat cycling, and rely on rubber diaphragms which perish.
Kompact Dual Port blow-off valves are also designed to handle increased boost levels. Turbosmart's Kompact offers big blow-off valve performance in a small package. Its billet aluminium construction provides strength, while the precision-machined lightweight piston gives excellent valve response and sealing without relying on rubber diaphragms or O-rings, so it's far more durable, and guards against compressor surge even when the boost is turned up
The Kompact Dual Port features a 50-50 split operation between recirculating and vent-to-atmosphere. One recirc Port keeps the car's ECU happy, while one vent-to-atmosphere Port gives the classic Turbosmart blow-off valve sound we know and love.