Ross Machine Racing Fuel rail machined from T6063 Dash 8 or 10 Fuel rail extrusion. This rail does have the optional center return on the bottom f the rail that you can either use or plug. This kit comes with (2) Dash 8 or 10 O-ring to AN fittings, clamps, hardware, Injector Bungs, and the Dash 8 or 10 Rail. This item is perfect for those looking to upgrade thier fuel system. Why pay $400-$600 dollars for the same thing you can get here. This is not some mass produced overseas knock off. We stand by Ross Machine Racing products 100% and it can be seen in the fact that a number of proven race teams (paradise racing, MSP, Bullish) run their products. Comes in 2 size options -10 or -8 RMR036ASSYMSRP: $300.00MTR sale price: $275.00Size: -10-8 Finish: Machine PolishPolished+25.00 Thank you for shopping Manic Tech Racing.