New K-Series Fuel Lines Kits! We are now offering fuel line kits for EP3, RSX, K-Swapped EM2, 8th gen Civic Si, 9th Gen Civic Si (with RBC intake manifolds). These fuel line kits will remove the oem fuel line inside the engine bay and use an efi connection at the firewall to connect 6AN braided fuel line. The lines come in two options, side feed (can be used with center mount gauge) and center feed fuel line for a nice tucked look.