Looking for aftermarket parts to modify or upgrade your 1997 Audi A4 with blow off valves? At Tunersports.com we carry a huge selection of the top name brand performance blow off valf parts and accessories for your A4.
Whether you have a 1997 Audi A4 in Base trim we have you covered. We have 5 blow off valves available to mod your A4. All parts have free shipping to the Continental US 48 States.
 IN STOCK - DROPSHIPS T9525Control the sound of your BOV "ON-THE-FLY." Go on, admit it. There are times you wish you could have that signature turbo blow off sound, but you're not prepared to listen to it all the time. GFB's Deceptor Pro II delivers just what you need ? the ability to control how loud your BOV sound is, from ... GFB Deceptor Pro II Blow Off Valve - 25mm Inlet/25mm Outlet 1997-2005 Audi A4 Base $441.00 |
 IN STOCK - LOW T9301The TMS range from GFB is designed specifically for the purpose of turbo lag reduction, and improving throttle response. Tests show TMS features can return?engine?to peak boost up to 30 percent faster than a factory diverter valve when shifting gears.... GFB Diverter Valve (25mm Bosch Diverter Valve Replacement) 1997-2005 Audi A4 Base $159.54 |
 IN STOCK - DROPSHIPS T9125The Mach 2 direct fit bolt-on range covers a huge list of popular vehicles. You can also purchase a variety of hose and flange adaptors for custom fitments. Please check the application guide to find the Mach 2 model for YOUR car!... GFB Mach 2 TMS Recirculating Diverter Valve - 25mm Inlet/25mm Outlet 1997-2005 Audi A4 Base $166.50 |
 IN STOCK T9025If cars like yours typically suffer issues such as backfiring and stalling when using a fixed-ratio atmosphere-venting BOV, the Respons can help. By adjusting the venting bias to suit the car you can achieve a blow-off sound without having to put up with the issues. Like all GFB valves, the Respons ... GFB Audi/VW 1.8T TMS Respons Blow Off Valve Kit 1997-2005 Audi A4 Base $298.80 |
 IN STOCK T9225Want it loud? Quiet? In between? GFB Hybrid kits include a pair of blanking plugs that allow the valve to be configured for full recirculation venting, 50/50 (atmosphere / recirc), or full atmosphere venting.... GFB HYBRID TMS Dual Port 20mm Inlet/20mm Outlet 97-05 VW Golf GTI 1.8T 1997-2005 Audi A4 Base $220.50 |