Ls 7 Fuel Rails Red Gilmer Drives and Belts Residual pressure valves are a

Residual pressure valves are a one-way check valve used to keep a small amount of pressure in your brake lines

so it will only work with oem and some aftermarket oil filters

Part Number : PFEEHBLSBK

including various fuel line and braided flex line construction choices

Ls 7 Fuel Rails Red Gilmer Drives and Belts Residual pressure valves are aPart Number: AF64 2007R 's billet efi fuel rails feature precision machining with heavy duty mounts for high pressure applications. Fuel rails are threaded with a 8an orb port and have a 16. 1mm 41 64" size bore. Fuel rails are double anodised and are available in blue, black, red and polished finishes.