The ball and spring design of the Grimmspeed manual boost controller provides the fastest turbo spool-up of any other type of MBC design. The 6061 grade aluminum exterior, with stainless steel spring and ceramic ball internals, combine to make this high-quality manual boost controller very corrosion-resistant.

#BC-GRM-070002. Grimmspeed Manual Boost Controller - Black A compact and uniquely designed manual boost controller. $89.99 Qty:

#BC-GRM-070002B. Grimmspeed Manual Boost Controller - Blue A compact and uniquely designed manual boost controller. $89.99 Qty:

#BC-GRM-070002R. Grimmspeed Manual Boost Controller - Red A compact and uniquely designed manual boost controller. $89.99 Qty: