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034Motorsport Billet Diverter (Bypass) Valve Upgrade for Audi/Volkswagen 1.8T, 2.2T, 2.7T, 4.2T




This high-quality, performance engineered diverter valve is designed to replace the factory plastic diverter valve, which is a common source of boost leaks. Unlike the OEM valves, which use a fragile rubber diaphragm that is prone to failure, the 034Motorsport Diverter Valve features a high-performance spring and piston design. This means that the valve lasts much longer, and is capable of handling increased boost pressure.

The 034Motorsport Bypass Valve is fully serviceable and rebuildable.


 Make Model Year Range Application Notes
Audi A4 1996-2001 1.8T
Audi A4 2002-2005 1.8T
Audi S4 2000-2002
Audi RS4 2000-2002
Audi A6 1998-2004 2.7T
Audi Allroad 2001-2005 2.7T
Audi S4 1992-1994
Audi S6 1995-1997
Audi 1.8T 2000-2006
Volkswagen Golf 1999-2005 1.8T
Volkswagen GTI 1999-2005 1.8T
Volkswagen Rabbit 1999-2005 1.8T
Volkswagen Jetta 1999-2004 1.8T
Volkswagen GLI 1999-2004
Volkswagen Passat 1998-2005 1.8T
Volkswagen Beetle 1998-2010 1.8T