Hallman PRO-BK Boost Controller, Black

Installed this MBC on my 2005 wrx. Installation was very easy. The controller works MUCH better than the OEM electronic boost control solenoid. It work much better then the Grimmspeed Electronic Boost Control Solenoid. Spool is faster, and holds boost at target with no surge or overboosting.I highly recommend this for any Subaru, as long as you are tuned for one.

The hallman boost controller is the best manual controller I've ever had! Easy to install it literally comes with everything you need down to zip tues!

Couldn't build more than 11.6 psi

Arrived quickly and exactly as described