old vs new exhaust. Current mods: 91 Stage 3 Twin Turbo 5-Speed *Single JWT pop charger intake *JWT Stage 3 Eprom & socket ecu *RPS 6 puck clutch disk and pressure plate *SPL stainless clutch hose/line *Greddy Profec B Type 1 Boost controller *Perrin Boost solenoid *Chrome hard pipe kit *Billet short throw shifter *SPL shifter bearings *Maxspeed bovs *Top Speed HICAS eliminator *Greddy turbo timer *Custom 2.5" exhaust with H pipe and HKS hyper style mufflers *PTU relocated under the nose piece *Red wrinkle coated upper plenum *Energy suspension Steering Rack Bushings *Energy suspension diff bushings *Aluminum Rear subframe collars *2 1/2" SS divorced downpipes *2 1/2" SS test pipes *2 1/2" Custom catback *AIV Delete *Complete EGR system removed (no 1/2 assing it) *Safety boost solenoid delete *Autometer boost and a/f (disco light) in A pillar pod *JVC CD head unit *Escort X50 Radar Detector *Aftermarket alarm with remote battery.. *19x8.5 19x9.5 staggered Aluminum 5 star wheels *Little stuff I am sure I am forgetting *Fluids*Engine-Royal Purple 15-50 *Trans-Redline ***Needs*** *Larger intercoolers *Nismo 555cc injectors