Boost Controllers

GrimmSpeed

GrimmSpeed 08-10+ Evo X Boost Control Solenoid

The Most COMPLETE EVO BCS Ever Built, Period. 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...

GrimmSpeed

GrimmSpeed Universal Manual Boost Controller

The Next Level of Boost Control. Welcome to the most refined manual boost controller available on the market today. During development, we worked hand in hand with tuners across the country to develop this device and ensure that it solves...