Grimmspeed introduces the ONLY complete and easy to use 3-Port Electronic Boost Solenoid available on the Genesis market. This solenoid allows you to tune your OEM boost levels in a quick and efficient manner through your factory ECU. The stock boost more info

GrimmSpeed Intake/Exhaust Gaskets:  GrimmSpeed OEM Style Gasket, OEM quality without the high OEM price. At GrimmSpeed we have worked with endless amounts of aftermarket gaskets, none seem to work as well as the multi-layer steel OEM style gaske more info

GrimmSpeed Intake/Exhaust Gaskets: GrimmSpeed OEM Style Gasket, OEM quality without the high OEM price. At GrimmSpeed we have worked with endless amounts of aftermarket gaskets, none seem to work as well as the multi-layer steel OEM style gaskets. Th more info

Improve style and Increase Flow!   Most adjustability available on the market! Mounts in OEM tow hook location (No cutting or drilling required) Simple stainless steel allen key hardware Will not block flow to your FMIC and can more info

Do you know what your intake manifold sits on?...a superheated engine. If you don't know already, the cooler your intake air is the more HP your car will achieve . We present you the answer to this age old problem, raising the intake manifold more info

Do you know what your intake manifold sits on?...a superheated engine. If you don't know already, the cooler your intake air is the more HP your car will achieve . We present you the answer to this age old problem, raising the intake manifold more info

Do you know what your intake manifold sits on?...a superheated engine. If you don't know already, the cooler your intake air is the more HP your car will achieve . We present you the answer to this age old problem, raising the intake manifold more info