Our ZZPerformance billet bypass valve is an upgrade over the stock bypass valve on your ZZP V2/V3/V3.1 turbocharger. The stock bypass is made of rubber and can eventually rip or tear, leading to reduction or lack of performance; our billet unit is sealed via an o-ring and uses a machined aluminum plunger to actuate. This billet bypass will also change the "blow off" noise you experience while driving, making it more pronounced. This billet bypass is now included on all V3.2 turbochargers, but is an upgrade for those who previously purchased the older versions of the big wheel turbo. 

Includes:

• ZZP billet bypass valve
• (3x) Stainless socket head bolts
  

Fits: ZZPerformance Big Wheel Turbo V2, V3, and V3.1. Does not fit stock turbo. Does not work with 2nd generation Cruze.