Hybrid Racing Tucked Fuel Line - 2002-2011 Honda Civic Si / 2002-2006 Acura RSX
Want to clean up your K series engine bay and get rid of the factory rubber fuel line? The Hybrid Racing tucked fuel line routes from the firewall, then hugs the transmission case on its way to the fuel rail, installing in the bottom of the rail between intake runners 2 and 3 on a K Series. It replaces the factory rubber line and plastic clips with a PTFE-lined -6AN braided line that's rated for E85, methanol, and over 100 psi. You get a cleaner engine bay and better fuel flow at the same time.
Routes Between the Block and Transmission
The line's routed to tuck against the block and transmission case so it's not visible from the front of the engine bay. It exits the factory hard line at the firewall, drops down between intake runners 2 and 3, then follows the transmission case up to the fuel rail. You're not looking at a rubber fuel line stretched across the top of the intake manifold anymore.
PTFE Core for E85 and High Pressure
The line uses a PTFE core that's compatible with E85, methanol, and pressures over 100 psi. The -6AN inner diameter flows more fuel than the factory rubber line, which matters if you're running a turbo or building the engine for high RPM. PTFE doesn't degrade from ethanol or high fuel pressure the way rubber does.
Quick Disconnect, No Cutting or Flaring
The firewall end uses a proprietary quick disconnect that snaps onto the factory hard line. You're not cutting or flaring anything. Just disconnect the factory rubber line, snap this quick disconnect onto the hard line, and route the braided line to the fuel rail. The rail end includes both -8 ORB and swivel -6AN adapters so it fits the Hybrid Racing fuel rail or any aftermarket rail with a center port.
Black Anodized Fittings
All the fittings are CNC machined aluminum with black anodizing to resist corrosion and UV fade. The line separators and mounting hardware are included so the line stays routed properly and doesn't rub on anything.
What You Get
- Pre-assembled -6AN PTFE braided fuel line
- Firewall quick disconnect with O-ring
- -8 ORB to -6AN fuel rail adapter
- -6AN swivel fitting
- Nylon line separators
- Stainless mounting hardware
- PTFE core compatible with E85, methanol, and 100+ psi
- Black anodized CNC machined fittings
Fits Your Car
- 2002-2005 Honda Civic Si EP3 (K20A3)
- 2006-2011 Honda Civic Si (K20Z3)
- 2002-2006 Acura RSX (K20A2, K20A3, K20Z1)
Note: Pre-assembled line length is dialed for RSX, EP3, and 06-11 Civic Si. No cutting, flaring, or special tools required for installation. Compatible with Hybrid Racing fuel rails and most aftermarket rails with a center port.
