Grimmspeed 057001 is made to work with your WRX factory computer, it is a safe and easy upgrade for your WRX. It helps the factory turbo flow much better which in-return will help you spool and get in to boost a lot faster.
It’s a plug and play product no splicing or soldering, includes a bolt on bracket.
Make your WRX faster than the STI model!

Additional Features:

·         Users can use AN fittings with the solenoid.

·         MAC Valve has completely custom made the valve for us, only MAC valve on the market to be custom made for automotive tuning use.

·         Specifically designed by GrimmSpeed to work safely with the factory WRX ECU and to reliably handle the vibrations and temperatures of your engine bay.

·         The only direct “bolt in” design for the WRX. Direct bolt in mounting bracket and hardware included.
Faster response and greater flow than any other valve out there.

·         Nickel plated brass fittings, unlike the competitor’s failure prone plastic fittings.