VW MK4 1.8T Performance BOVs & Diverter Valves
Diverter valves live in a tough neighborhood. By definition diverter valves limit turbo boost, and in most cases eventually fail due to a pin hole sized tear in the valve diaphragm.
It's for this reason that ECS now supplies an unparalleled range of superb Performance Diverter & Blow Off Valves. All of the most prominent brands are represented - CTS, ECS, Forge, APR, HKS, and EuroSport kits all feature boost-hardy internals tough enough to take the pressure without blowing their lids.
Each unit works and plays well with your MK4 1.8T engine management system.
Blow off some steam
Fits:
VW 337/20th (2002 - 2003)
VW MK4 GTI 1.8T (1999 - 2005)
VW MK4 Jetta 1.8T (1999 - 2005)
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