Description : Electronic Boost Control Solenoid 3-Port - Subaru Product Description Get into Boost Much Quicker (Flows 10% more than the competition) Plug and Play into OEM Harness (no splicing wire like other BCS!) Factory Fit with clean install Works Safely with Factory Subaru ECU (custom coil to match ECU) Nickel Plated Fittings as this is Built To Last (not the easily breakable plastic fittings!) Easy to Install and Very Easy to Tune The Only Direct Bolt-IN BCS for all Subaru Models GrimmSpeed™ introduces the most complete and easy to use Subaru WRX, STi, FXT, and LegacyGT 3-Port Electronic Boost Solenoid available on the market. Our aftermarket boost controller allows you to raise the OEM boost levels in a quick and efficient manner. If you try to raise the boost on the weak OEM boost solenoid it will start to become unpredictable and unable to maintain proper and safe boost levels. Using our solenoid you are able to spool your turbo quicker and maintain a rock solid boost level. We have made our solenoid to withstand 120psi, way more than any Subaru will see. Revolutionizing the Subaru boost solenoid market, we have created model specific install brackets that allow you to directly fit our Boost Solenoid into your Subaru for a factory fit. No more Zip-tying! We give you the factory fitment you have been waiting for. Staying with the OEM fitment theme, our Boost Solenoid uses a Subaru style wiring harness so you can simply unplug your OEM solenoid and plug ours in. No more cutting the oem wiring and crimping wires together! Also new to the Subaru boost solenoid market, we have used ultra low-profile hose fittings to keep the unit as small and clean as possible. The hose fittings are nickel plated brass so you don't have to worry about them snapping off like the plastic hose fittings! More Features: Users can use AN fittings with the solenoid. MAC Valve's 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 Subaru ECU (requires tuning) and to reliably handle the vibrations and temperatures of your engine bay! The only direct “bolt in” design for all Subaru models. Direct bolt in mounting bracket and hardware included! (specify which model before ordering) Faster response and greater flow than any other valve out there. (by more than 10%!) Nickel plated brass fittings. (unlike the competitors failure prone plastic fittings) This BCS will handle all your boost control needs no matter what your power goals are. Easy for your shop or tuner to tune! (Engine tune is required!) Tuner's comments on our Boost Solenoid AWD Tuning: "The GS 3-port BCS provides rapid boost response while maintaining the ability to make acute adjustments via turbo dynamics. While many other boost control solenoids react to adjustments too fast which can make them difficult to control with as much finesse as the stock bleed system. This solenoid can make micro-adjustments at the edge of target boost not only providing better spool, but overall more control. " Bullwinkle Tuning: "The GrimmSpeed™ BCS is a compact, well designed unit. Its design as a 3-port solenoid provides better boost control then the stock bleed-type style. Often, this enables a tuner to cut mapped wastegate duty cycles in half. This change in WGDC gives a tuner more granularity when tuning, and can yield much improved boost curves. In addition, the 3-port design often significantly improves spool." Install Guide Subaru Boost Controller Install Instructions Product Videos 2005 wrx stage 2 dyno (00:37) 2005 wrx 4th gear dyno pullMods:Ebay downpipeSpt/ bosal catbackPerrin up-pipeGrimmspeed bcs229 whp 251 wtqThanks to andy at ftw tuning GrimmSpeed Boo... GrimmSpeed introduces the most complete and easy to use 3-Port... GrimmSpeed Boo... We conducted a comparison test between our valve and other kno... BCS Intro_v2_v... GrimmSpeed's Boost Control Solenoid Highlighted Grimmspeed EBC... Installed Grimspeed EBCS. Car runs a lot better and more respo... GrimmSpeed Boo... GrimmSpeed introduces the most complete and easy to use 3-Port... 2008-2012 SUBA... I just made a quick video on how the GRIMMSPEED EBCS is hooke... Grimmspeed 200... http://www.rallysportdirect.com/GrimmSpeed-Boost-Solenoid-Suba... 2006 Subaru ST... Dyno vid of my 2006 Subaru STI.Cobb AccessportCobb Catless TBE... 2005 wrx stage... 2005 wrx 4th gear dyno pullMods:Ebay downpipeSpt/ bosal catbac... Product Videos GrimmSpeed Boost Control Solenoid Install (06:29) GrimmSpeed Boost Control Solenoid (BCS) Comparison (00:39) BCS Intro_v2_video (00:48) Grimmspeed EBCS Install and retuning Stage 2 Protune Accesport 2007 Wrx STI (00:33) GrimmSpeed Boost Control Solenoid Install 08+ WRX/LGT (09:08) 2008-2012 SUBARU WRX STI GRIMMSPEED ELECTRONIC BOOST CONTROL SOLENOID (01:11) Grimmspeed 2008+ Subaru STI Boost Solenoid- Whats in the Box? (02:12) 2006 Subaru STI - Dyno Video 271whp (00:48) 2005 wrx stage 2 dyno (00:37)