Returnless 8th Gen Civic DW400 Performance Module

750HP+ Drop-In Pump Modules

The DeatschWerks DW400 Performance Modules provide a high-flow, plug-and-play fuel system upgrade for Civic Si models from 2001 through 2015. Each module features a pre-installed DW430c fuel pump, ethanol-compatible fuel filter, and an integrated Performance In-Tank Regulator (PITR) to deliver increased flow and pressure. Designed to drop into the OEM tank and retain all factory functionality, these modules are fully compatible with the Civic’s returnless fuel system—no additional plumbing or modifications required.

Key Features & Benefits

• Pre-installed DW430c pump and ethanol-compatible filter
• Retains OEM fuel system configuration
• Direct replacement with no tank or module modification
• Integrated PITR supports higher base pressure
• Plug-and-play operation
• Supports the factory returnless fuel system, no extra plumbing required