Adjustable Dump Valve Single Recirculating (TBV003.34B)
Adjustable Dump Valve Single Recirculating (TBV003.34B)
Motorsport Adjustable Dump Valve, Single Recirculating Piston (Blue)
Standard Range :- 0.5-1.2 Bar
Uprated Spring Range:- 1.3-3.0 Bar (Supplied in the box)
Available in Red,Black,Blue & Silver
Size Range:- 20,25,34mm
Dump valves are designed to vent unused pressure to atmosphere when the throttle has been released. When accelerating the turbo charger produces positive pressure which is used to supply the engine with large amounts of compressed air. When you lift the accelerator the throttle butterfly is closed and the boost has no escape route, so it backs up through the intercooler and causes back pressure that tries to prevent the turbo from spinning, this is known as compression stall.
By fitting a dump valve every time you release the throttle the excess boost pressure will be released which means a significant reduction in turbo 'lag', contributing towards faster pick up between gear changes. In extreme cases on cars with high revving engines or large turbochargers the shaft within the turbo has been known to snap when no form of dump valve has been used.
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Model Compatibility
Model Compatibility
Audi A4 B6 2002-2005
Audi A4 B7 2006-2008
Audi A4 B8 2009-2016
Audi A4 B9 2017-current
Audi S4 B5 1997-2002
Audi S4 B6 2003-2005
Audi S4 B7 2006-2008
Audi S4 B8 2009-2016
Audi S4 B9 2017-current
Audi RS4 B7 2007-2008
Audi RS4 B8 2012-2015
Audi RS4 B9 2018-current
Audi A6 C5 1998-2004
Audi A6 C6 2005-2011
Audi A6 C7 2012-2018
Audi A6 C8 2019-current
Audi S6 C5 2002-2004
Audi S6 C6 2007-2011
Audi S6 C7 2012-2018
Audi S6 C8 2019-current
Audi RS6 C5 2003-2004
Audi RS6 C6 2008-2010
Audi RS6 C7 2013-2018
Audi RS6 C8 2019-current
BMW 3 Series E46 1998-2006
BMW 3 Series E90/E91/E92/E93 2005-2013
BMW 3 Series F30/F31/F34/F35 2012-2019
BMW 3 Series G20/G21 2019-current
BMW M3 E46 2000-2006
BMW M3 E90/E92/E93 2007-2013
BMW M3 F80 2014-current
BMW 5 Series E39 1996-2003
BMW 5 Series E60/E61 2003-2010
BMW 5 Series F10/F11 2010-2016
BMW 5 Series G30/G31 2017-current
BMW M5 E39 1999-2003
BMW M5 E60/E61 2005-2010
BMW M5 F10/F11 2011-2016
BMW M5 G30/G31 2017-current
BMW 6 Series E63/E64 2004-2011
BMW 6 Series F06/F12/F13 2011-2018
BMW 7 Series E38 1994-2001
BMW 7 Series E65/E66 2002-2008
BMW 7 Series F01/F02 2009-2015
BMW X3 E83 2003-2010
BMW X3 F25 2010-2017
BMW X3 G01 2018-current
BMW X5 E53 1999-2006
BMW X5 E70 2007-2013
BMW X5 F15 2013-2018
BMW X5 G05 2019-current
BMW X6 E71/E72 2008-2014
BMW X6 F16 2014-2019
BMW X6 G06 2020-current
Mercedes-Benz C-Class W203 2000-2007
Mercedes-Benz C-Class W204 2007-2014
Mercedes-Benz C-Class W205 2014-current
Mercedes-Benz E-Class W210 1995-2002
Mercedes-Benz E-Class W211 2003-2009
Mercedes-Benz E-Class W212 2010-2016
Mercedes-Benz E-Class W213 2016-current
Mercedes-Benz S-Class W220 1998-2005
Mercedes-Benz S-Class W221 2006-2013
Mercedes-Benz S-Class W222 2014-current
Mercedes-Benz CLS-Class W219 2004-2010
Mercedes-Benz CLS-Class W218 2010-2018
Mercedes-Benz CLS-Class C257 2018-current
Mercedes-Benz AMG GT C190 2014-current
Porsche 911 996 1998-2004
Porsche 911 997 2005-2012
Porsche 911 991 2012-2019
Porsche 911 992 2020-current
Porsche Boxster 986 1996-2004
Porsche Boxster 987 2005-2012
Porsche Boxster 981 2012-2016
Porsche Boxster 718 2016-current
Porsche Cayman 987 200
Part Number
Part Number
- Adjustable Dump Valve Single Recirculating (TBV003.34B)
- TBV003.34B
Shipping Information
Shipping Information
Standard shipping with tracking via Royal Mail or Evri for heavier parts:
- £4.99 per order for standard 2-day delivery
- £5.99 per order for Next Day delivery
Most orders are shipped the same business day if ordered before 2pm. We ship Monday through Friday.
If we unexpectedly run out of stock we may have to order your part which can take up to 1 week. We will be in touch in the rare circumstance that there is a delay to your shipment.
Returns Policy
Returns Policy
We want you to be completely happy with your purchase but please do not hesitate to contact us immediately if you have a problem with your order. Please ensure that you consider all the points described on our profile page accessible by clicking our name above the product title.
It is especially important that you take due care to ensure that the part you selected is compatible with your car. If in doubt, we'd prefer that you get in touch via our profile page so we can help you.