DeatschWerks DW400 Pump Module & Return Kit w/PTFE Fuel Lines Honda Civic Si 2006-2011 | 9-401-608-7041

Product Fitment: 

2006-2011 Honda Civic SI

Upgrade your fuel system with the high-capacity DW400 Drop-In Fuel Pump Kit from DeatschWerks, engineered specifically for the 2006–2011 Honda Civic Si. Designed for performance builds and high-power applications, this complete kit delivers reliable fuel delivery while retaining factory module functionality for seamless installation and daily drivability.

Built to support demanding setups, the DW400 pump flows enough fuel to handle up to 900 HP on gasoline and 700 HP on E85, making it an ideal solution for turbocharged or heavily modified engines. The included cage and push-to-fit return plumbing simplify installation while maintaining OEM integration, so you get race-ready performance without sacrificing factory convenience.

Key Features

• High-flow DW400 pump supports up to 900 HP (gas) / 700 HP (E85)

• Designed for -6AN feed line with OE feed line used for return

• Compatible with pump gas, race fuel, and ethanol blends

• Complete fitment kit includes hoses, clamps, filters, and electrical connectors

• Plug-and-play harness for quick installation

OE Functionality Retained

• Factory fuel level sender

• Fuel surge bucket system

• OEM-style electrical connections

Performance Advantage

Whether you’re building a street car or track machine, this drop-in fuel system upgrade ensures stable pressure, consistent flow, and reliable fueling under boost. With optional plumbing kits available for regulators and filtration, the DW400 system can scale with your performance goals.