Description Get a bit more from your injectors by switching to a 4bar pressure regulator. This part requires tuning on the vehicles listed below. For 1.8T and 2.7T models. On a budget? For vehicles with return fuel systems you can get a mild Stage 1 , power gains won’t quite hit Stage 1 levels, but will offer a bit more than our Stage 1. Model (Model Years & Notes) Listings are for 1.8T and 2.7T only. Mild 1 (requires a 1 tune) or use with upgraded injectors Audi A4 (B5, Model Years 2000 & 2001) Yes Audi TT (2000-2005) Yes Audi S4 (B5, Model Years 1999 – 2002) (B6 & B7 4.2L 8 Cylinder) Stock Part Audi A6 (2000-2004) Stock Part Audi Allroad (2001-2005) Stock Part VW GTI/Golf (2000-2005) Yes VW Jetta/GLI (2000-2005) Yes VW Passat (2000-2001) Yes VW Beetle (2000-2004) Yes This is not an exhaustive list, only the vehicles we guarantee this part will fit. Bosch part Number: 0280160575 VAG Part Number: 078133534C
