DeatschWerks CPE & PTFE Return Kit for RSX/Civic Si

DeatschWerks CPE & PTFE Return Kit for RSX/Civic Si

If you’re piecing together a proper return style fuel system on an RSX, 02-15 Civic Si, this DeatschWerks CPE return kit gets you there without random parts guessing. You get the fittings, a fuel line, a regulator, a filter, and a gauge, so you can actually set pressure and verify it. That matters when you add injector, pump, boost, or just start leaning on the car harder, because stable fuel pressure keeps your tune predictable and your motor out of the danger zone. We run return style setups like this on our own cars because watching fuel pressure do weird stuff under load is not a hobby.

Key Features of the DeatschWerks CPE Return Kit

• Compatibility: Fits 2002 to 2006 Acura RSX, 2002 to 2015 Honda Civic Si, and 2013 to 2015 Acura ILX 2.4L, a legit return kit for the common K series crowd.
• Complete Kit: Includes CPE fittings, fuel line, gauge, regulator, and filter, think fuel line and fuel filter kit in one box.
• Pressure Control: Puts a real high-performance fuel regulator owners can set and monitor.

Want the same layout but with a different material choice for the plumbing side? Grab the DeatschWerks PTFE return kit. The return kit uses PTFE fittings for better chemical resistance, which is nice if you run aggressive fuels or you’re tired of chasing seepage and smells. It’s the same idea, consistent pressure and clean routing, just with PTFE hardware in the mix.

Key Features of the DeatschWerks PTFE Return Kit

• Chemical Resistance: PTFE fittings handle harsh fuel exposure better over time, that’s the practical point of a return kit.
• Full Kit, Same Coverage: Still includes fuel line, gauge, regulator, and filter.
• Same Fitment: Same model range as the CPE kit, so your performance fuel line setup stays straightforward.
• Long Term Durability: Less wear, less drama, more time driving