Want to modify or upgrade your 2002-2004 Audi A4 with aftermarket blow off valves? At OGTuners.com we have a great selection of aftermarket performance parts for your Audi A4. We have 5 blow off valves parts available in our store with free shipping to the Continental US.
Go Fast Bits Deceptor Blow Off Valves
 $453.60 T9525GFB Deceptor Pro II Blow Off Valve - 25mm Inlet/25mm Outlet IN STOCK (2) - LOW SHIPS FROM MANUFACTURER (Last checked: 11/04/2025) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2003-2006 Audi A4 Cabriolet |
Go Fast Bits DV+ Diverter Valves
 $171.00 T9302GFB Polaris RZR Turbo SXV Recirculating Bypass Valve IN STOCK 2003-2006 Audi A4 Cabriolet |
Go Fast Bits Mach 2 BOV Kits
 $172.80 T9125GFB Mach 2 TMS Recirculating Diverter Valve - 25mm Inlet/25mm Outlet IN STOCK 2003-2006 Audi A4 Cabriolet |
Go Fast Bits Respons BOV Kits
 $307.80 T9025GFB Audi/VW 1.8T TMS Respons Blow Off Valve Kit IN STOCK - LOW 2003-2006 Audi A4 Cabriolet |
Go Fast Bits TMS Blow Off Valves
 $225.00 T9225GFB HYBRID TMS Dual Port 20mm Inlet/20mm Outlet 97-05 VW Golf GTI 1.8T IN STOCK 2003-2006 Audi A4 Cabriolet |