Looking for aftermarket parts to modify or upgrade your Audi A4 Quattro 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 Quattro.
Whether you have a 1997 or 2020 Audi A4 Quattro in Avant to Ultra sport trim we have you covered. We have 8 blow off valves available to mod your A4 Quattro. 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 Quattro Base 1999-2005 Audi A4 Quattro Avant $441.00 |
 IN STOCK 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 Quattro Base 1999-2005 Audi A4 Quattro Avant $159.54 |
 IN STOCK T9351GFB's DV plus design solves the longevity and boost leaking issues that are common with factory diverter valves, and also changes the operation method to "pilot actuation" to ensure better performance on stock or modified engines. Furthermore, these benefits won't cost you the Earth! Rather than thr... GFB Diverter Valve DV+ 2.0T VAG Applications (Direct Replacement) 2005-2012 Audi A4 Quattro Avant 2005-2014 Audi A4 Quattro Base 2007-2009 Audi A4 Quattro Cabriolet 2015-2015 Audi A4 Quattro Prestige 2015-2020 Audi A4 Quattro Premium / Premium Plus 2017-2020 Audi A4 Quattro Prestige 2019-2020 Audi A4 Quattro Ultra sport $143.10 |
 IN STOCK T9381GFB Diverter Valve DV+ Volkswagen TSI/TFSI w/Pierburg Diverter Valve 2006-2012 Audi A4 Quattro Avant 2006-2014 Audi A4 Quattro Base 2007-2009 Audi A4 Quattro Cabriolet 2015-2015 Audi A4 Quattro Prestige 2015-2020 Audi A4 Quattro Premium / Premium Plus 2017-2020 Audi A4 Quattro Prestige 2019-2020 Audi A4 Quattro Ultra sport $198.00 |
 IN STOCK - DROPSHIPS T9451VTA BOVs vent to atmosphere to make the signature turbo blow-off sound, where the DV plus recirculates the air to keep it quiet. Each valve in the VTA range is designed specifically for the applications we list them for, ensuring the best fit and performance.... GFB Diverter Valve ATMO DV+ 2.0T FSI & TSI VAG Applications (Direct Replacement) 2009-2009 Audi A4 Quattro Cabriolet 2009-2012 Audi A4 Quattro Avant 2009-2014 Audi A4 Quattro Base 2015-2015 Audi A4 Quattro Prestige 2015-2020 Audi A4 Quattro Premium / Premium Plus 2017-2020 Audi A4 Quattro Prestige 2019-2020 Audi A4 Quattro Ultra sport $190.80 |
 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 Quattro Base 1999-2005 Audi A4 Quattro Avant $298.80 |
 IN STOCK TS-0223-1063Turbosmart BOV Kompact EM Dual Port - VW GTI/Golf R MK7 2008-2009 Audi A4 Quattro Cabriolet 2008-2012 Audi A4 Quattro Avant 2008-2014 Audi A4 Quattro Base 2015-2015 Audi A4 Quattro Prestige 2015-2018 Audi A4 Quattro Premium / Premium Plus 2017-2018 Audi A4 Quattro Prestige $274.95 |
 IN STOCK TS-0223-1263Turbosmart BOV Kompact EM Plumb Back - VW GTI/Golf R MK7 2008-2009 Audi A4 Quattro Cabriolet 2008-2012 Audi A4 Quattro Avant 2008-2014 Audi A4 Quattro Base 2015-2015 Audi A4 Quattro Prestige 2015-2018 Audi A4 Quattro Premium / Premium Plus 2017-2018 Audi A4 Quattro Prestige $244.95 |