Performance Billet Aluminum K-series Engine Bay Fuel Rail For 02-06 Acura RSX 01-05 Honda Civic K20 K24 Factory Lines 1/8th NPT Fuel Pressure Gauge 0-100 Psi w/ PUSH-ON FUEL FITTING Application: For 01-05 Honda Civic SI. For 02-06 Acura RSX. For HONDA/ACURA K-Series, like K20, K20a, K20a2, K20z, K20z1, K20z3, K24, K24a K24a2, Etc, may need -8 ORB / -AN Adapter fitting which are on sale in our store, contact us freely for more info. Vehicle compatibility charts are for REFERENCE ONLY. Check your vehicle with OEM below to match your needs. E85 compatible and can be used with stock and aftermarket injectors. Specification: 100% quality assurance tested, more responsive, less expensive, easier to install. The rail includes a 1/8" NPT hole that allow you to mount a fuel pressure gauge directly to your fuel rail. This puts the fuel pressure gauge in a spot that's easily visible, so you don't have to poke around in the engine bay just to see if you have fuel pressure. All of the ports can accept a -8 ORB fitting in the inlet(s) and outlet allowing you to run either -6 or -8 AN fuel lines. This is positioned so that the fuel line can pass between the middle two cylinder intake runners (depending on your intake manifold.) This is an excellent option for anyone looking to tuck their wires and lines. The rail has been shown to mount to the PRB, RBC, and RBB intake manifolds without needing any modifications. Any aftermarket intake manifolds that share the same fuel rail mounting points as the PRB, RBC, or RBB should also accept this rail. If you have a 02-05 Civic Si or 02-06 RSX, the PUSH-ON FUEL FITTING is for you. Mounted on the end of the fuel rail, this piece mates with the stock fuel line. It features an extended fitting to relax tension on the fuel line and help with clearance. Comes with an O-ring to prevent leaks with E85 Compatible. Material Color: Material: made of high quality Aluminum. Color: as picture. Package Included: 1x Fuel Rail Kit.