Upgrades include adjustable boost, fuel/air meter, boost gauge, Weltmeister adjustable sway bars(front and rear), Weltmeister 600lb springs, BB headers and exhaust, aluminum flywheel, stainless steel break hoses, cross cut rotors, Authority chips, K&N filter, strut brace. Newer water pump, timing belt with rollers, new front and rear seals. New front race seat. 4 extra S2 rims and 4 Hoosier race tires for track.