Blitz Super Sound BOV - Subaru Impreza GDA/GGA dump valve

Blitz Super Sound Dump / Blow-Off Valve 

Blitz part no., 70086

to fit Subaru Impreza Turbo GDA/GGA
GDB/GGB EJ20 08/00> 05/04

The Blitz dual drive SS BOV is important in any forced induction systems to improve engine performance and response. It also serves to increase the life of your turbo. The main purpose of the blow-off valve is to relieve the compressed air that is forced back into your turbo, which will cause compressor surge or backspin. Repetitive occurence of compressor surge will damage the turbo and cause turbo failure. The unique Blitz design was constructed with high quality polished aluminum to ensure durability and performance. It's valve design allows more compressed air to release making a deep swoosh sound.

This is a car specific kit and includes everything needed for direct bolt on fit.