Stage 1 Power Kit is a easy & simple bolt on power solution for your 3.8 GT4 or Boxster Spyder. Fully upgradable to higher power levels. Fully compatible with GT4 Clubsport race cars as well.
BMC Race Intake Filters
IPD Intake Plenum
GT3 82mm Throttle Body
Cobb Accessport V3 with SPM Stage 1 ProTune