5-Bar Fuel Pressure Regulator • 1.8T A4/Passat B5

If you have a 1-bar or higher chip tune in your 1997-99 A4 1.8T or 1998-99 Passat 1.8T, this 5-bar fuel pressure regulator delivers the increased fuel flow required for sustained high-RPM and high-load performance. We modify an OEM BOSCH regulator to elevate line pressure, ensuring your engine receives adequate fuel delivery when pushing limits. Ideal for vehicles running aggressive tuning and frequent spirited driving.

Notes

• Original BOSCH component, made in Germany or Brazil