Audi TT Quattro Fuel Pressure Regulator - APR - 4 Bar (2000–2006). This OEM Bosch 4 bar regulator for the 1.8T raises fuel line pressure to provide additional fueling headroom when used with an applicable tune.

Designed as a factory-style replacement, APR’s 4 bar FPR helps maintain stable rail pressure under increased load, supporting higher injector capability on calibrated 1.8T setups. It fits the stock fuel rail on Audi TT and TT Quattro models from 2000–2006 and operates as a plug-and-play solution when paired with the proper software, offering a clean path to reliable fueling without unnecessary complexity.

Features

• 4 bar maximum fuel pressure
• OEM Bosch regulator specified by APR
• Fits Audi TT and TT Quattro 2000–2006 (1.8T)
• Plug and play with applicable tune
• Supports increased fueling headroom and injector capability

Have questions or need setup advice? Call us at 512-982-9393 (TX) or 562-981-6800 (CA). We operate two locations in Austin, Texas and the Los Angeles, California area, where we offer installation and customization services. If you’re considering multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov