S197S Dual Pump Module / Returnless

• Electronic returnless configured fuel pump module. Fully upgradeable to operation in a return fuel system.
• E85 and race fuel compatible (see pump manufacturer recommendations on fuel compatibility)
• Accepts OEM level sender from '07-'12 GT500 only
• Viton o-ring pump seals totally eliminate in-tank fuel hose failures.
• Deletes restrictive PPRV for highest performance and consistent output
• Polymer pump support eliminates pump body electrolysis and minimizes noise
• Hermetic wire seal completely eliminates the chance for leaks/smell
• * You MUST upgrade the FPDM and electrical system to properly support these upgraded pumps. Suggest dual drivers for best results. Consult with your tuner before selecting pumps.

FAQ:

Can 405 lph (TI F90000262) or 465 lph (TI F90000267) pumps be operated in a returnless configuration?
No, the pumps' minimum output is too much supply for idle/cruising. (two pumps) We do not recommend running anything larger than the F10000302 (265lph) fuel pumps in this configuration.

Do you sell upgraded FPDMs?
No, a second Fuel Pump Driver Module (FPDM) and pigtail harness can be purchased from Ford. Some of our customers use our FC2 controller as a power supply for twin FPDMs.

How much power can be made in a PWM (returnless) configuration?
We have supported over 1000 rwhp in a PWM configuration, but we generally set the limit around 700-750 rwhp (gasoline applications, lower for E85) for driveability. Due to the fact that "electronic returnless" is a reactive fuel system (it is always a step behind the motor demand) it generally cannot adequately keep up with the severe demand transients that modified motor requires.

* - 2005-2009 Mustang GT requires 2007-2009 GT500 level sender, 2010 Mustang GT requires 2010 GT500 level sender