A ZL1 style module was designed to be speed-controlled, not switched on and off. Run it flat out through a relay and you get heat, noise and a pump working far harder than the engine needs. This controller gives it the pulse width modulated signal it expects, and the factory ECM safety systems stay intact.

Aeromotive 66136 Returnless Pulse Width Modulation Controller Kit Features:

• Provides a stand-alone, OE-type returnless fuel system with no return line or external regulator.
• Works with OEM fuel pump modules from any Gen5 or Gen6 Camaro.
• Also suits the C7 Corvette, Gen3 CTS-V3 and GM late model truck modules with brushed pumps.
• Runs constant pressure, or 1:1 manifold referenced pressure using the supplied MAP sensor.
• 40 amp minimum continuous rating, 10-22 V operating range.
• Controller measures 4.5 in. long by 3.5 in. wide by 2 in. high.
• Over-temperature shutdown with automatic reset and short circuit protection.
• OEM Delphi and Aptiv connectors with cross-linked polyethylene wiring.
• Integrates into the OE ECM so factory safety systems remain functional.