APR Z1000219 OEM Fuel Pressure Regulator 4 Bar 1.8T Turbo

The APR Z1000219 is an OEM Bosch fuel pressure regulator designed to increase fuel delivery capacity for 1.8T turbocharged engines. This upgraded 4 bar fuel pressure regulator replaces the factory 3 bar unit, allowing for greater fuel flow to support higher horsepower applications when paired with the appropriate ECU tune.

Key Features:

• OEM Bosch quality and reliability
• 4 bar maximum fuel pressure (versus factory 3 bar)
• Plug-and-play installation with compatible APR ECU tuning
• Increases fuel injector capacity and headroom for performance modifications
• Direct replacement for factory fuel pressure regulator
• Essential upgrade for Stage 2+ and higher tuning levels

This fuel pressure regulator is a critical component for 1.8T engines running aggressive tunes that exceed the factory fuel system's capabilities. By raising base fuel pressure from 3 bar to 4 bar, this regulator allows the stock fuel injectors to flow approximately 33% more fuel, supporting higher boost levels and power output without requiring upgraded injectors. Professional installation and proper ECU calibration are recommended to ensure optimal performance and reliability.