JR Wheels JR21 17x7 ET40 4x100/114 Matt Black CB: 74,1 JR5 high performing 40mm external wastegate

high performing 40mm external wastegate designed for control strategies that actively bias the top chamber with increased pressure for large boost bandwidth operation

The kit is designed and manufactured the way that after installation and toe adjustment it's ready to use right away

you can benefit from optional "C6 Rack Offset Spacer Kit" that will allow you to achieve even bigger steering angle on C6 chassis (not needed on C5) and improves the Ackermann curve

Genuine street performer with good flow & heat characteristics

inner wheel wells need to be slightly modified

JR Wheels JR21 17x7 ET40 4x100/114 Matt Black CB: 74,1 JR5 high performing 40mm external wastegate