A worn or ruptured fuel pressure regulator diaphragm is a leading cause of performance issues in classic GM TPI engines. Plug-and-Play Installation: Designed as a bolt-on solution that fits perfectly onto your factory TPI fuel rail.
TPi Adjustable Fuel Pressure Regulator & Diaphragm – Corvette Camaro Firebird TP
TPi Adjustable Fuel Pressure Regulator/Diaphragm & Felpro Gasket kit 1985-1992
Universal Inline Black Low Pressure Adjustable Fuel Pressure Regulator 1-6 PSI
Universal Adjustable Fuel Pressure Regulator Gauge AN6 Pressure Regulator Kit US
Mallory 4212 Adjustable Fuel Pressure Regulator 30-75 Lbs Fuel Rail Ford 5.0 2.3
Adjustable Fuel Pressure Regulater, 1-6 psi & Red Fuel Line 5/16
