V-FS23 19x9.5 5x112 ET42 CB66.56 SM Pontiac > GS (2008-2009) this atmospheric diverter valve dumps

this atmospheric diverter valve dumps the charge-air to atmosphere creating the "Whoosh" sound most commonly associated with rally cars

Machined and hand polished in the UK

If you wish to tune this product to fit the needs of your engine

Gains of 21BHP

1 x Aluminium Machined Coupler

V-FS23 19x9.5 5x112 ET42 CB66.56 SM Pontiac > GS (2008-2009) this atmospheric diverter valve dumpsOpen mesh design with smooth concave in two profiles, standard and deep. Designed to enhance modern vehicles with a contemporary aesthetic from VAG Group, BMW and Mercedes. NEED FITMENT ADVICE? If you are unsure this wheel will fit your vehicle please contact an advisor before ordering. Please note we are not responsible for any incorrect fitment, see our Returns Policy for further clarification. SEE THIS WHEEL IN MORE DETAIL: