It has adjustable  snap closure in the rear so one size fits for all

All the metal components on Wisefab E90 front suspension are from high strenght steel

it is 50% lighter and 25% smaller than the competition while flowing huge CFM - making it the highest flowing 50mm / 2

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

GS6-53DZ mechanical release bearing

WG40CG GenV Compgate 40 5psi Compressed Gas Black JR36 It has adjustable snap closureThe Gen V WG40CG Comp Gate40 Compressed Gas external wastegate is a cost effective, high performing 40mm external wastegate designed for control strategies that actively bias the top chamber with high pressure for large boost bandwidth operation, such as CO2 drag racing, or compressed air WRC applications.