PERRIN Rotated Turbo kits include everything for your properly tuned WRX/STI.  PERRIN kits are designed to bolt to factory exhaust manifolds, and to factory catback exhaust.  

 Simply add a PERRIN front mount intercooler, PERRIN injectors and fuel rails, ECU tuning, Exedy Clutch, PERRIN cat-back Exhaust and you are ready to claw apart the surface of your local racetrack! All systems have a fully recirculated wastegate dump tube to prevent fire, noise and stench.