- All K-Tuned fuel rails and factory fuel lines.
* Comes with both fittings
These RSX specific fuel fittings are designed to work with our K-Tuned fuel rail and the existing OEM RSX fuel lines. They will also fit any rail with 8AN inlet / outlet ports. This kit includes 2 fittings: a full flow 5/16' EFI fitting and 8AN port plug.