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The GrimmSpeed Universal Manual Boost Controller is an inline bleed-style controller that raises boost by restricting the wastegate actuator signal
this middle piece from Tomei's Expreme Ti exhaust system helps to reduce overall weight while providing optimal performance
The GR/GV STI benefits from 24mm front stiffness on track configurations
The result is rear axle behavior that doesn't match the static alignment reading -- the geometry changes under cornering load
GSC Power-Division Single Beehive Valve Spring Set - 2003-2006 Mitsubishi Evo 8/9 PDM_aftermarket-grills The GrimmSpeed Universal Manual BoostGSC Power Division Single Beehive Valve Spring Set Mitsubishi Evo 89 2003 2006 RallySport Direct is proud to carry the GSC Power Division Beehive Springs which are the result of some of the most advanced manufacturing techniques in the industry. GSC uses an ovate wire which utilizes advanced material heat treatment methods for superior load loss capabilities. This provides the spring with the highest level of spring load retention while still