20mm recirculation (plumb-back) outlet adaptor for GFB blow-off and diverter valves, including the universal V-band Mach 2, Hybrid, Respons and Deceptor Pro II valves.

Genuine GFB (Go Fast Bits) part, supplied by Boosted Performance Parts, Sydney. Not sure it suits your car? Contact us with your make, model and mods before ordering.