These Supplemental Fuel Pump kits are required for GM trucks utilizing #1577, #1578 and #1579 E-Force Supercharger systems. Failure to use the supplemental fuel pump kit may result in engine damage. These supplemental fuel pump kits are not required for Flex Fuel models. Flex Fuel models come standard with adequate fuel systems that properly operate with the Edelbrock E-Force Supercharger system. These supplemental fuel pump kits include a replacement fuel pump, control module and fuel level sender (system #15791 also includes injectors).
Edelbrock Supercharger; Supplemental Fuel Pump Kit; 2003-2007 GM 1500 Truck; Returnless Fu
Edelbrock part #15549 Universal Heat Exchanger for Edelbrock Universal or Enforcer Supercharger systems. These heat exchangers offer reliability and durable construction for high Performance's street applications. Delivers 20,500 btu/hr.
Chevrolet:Small-Block LC9:325 (5.3L);Chevrolet:Small-Block LH8:325 (5.3L);Chevrolet:Small-Block LMF:325 (5.3L);Chevrolet:Small-Block LMG:325 (5.3L);Chevrolet:Small-Block LY5:325 (5.3L);Chevrolet:Small-Block Gen III LM7:325 (5.3L);Chevrolet:Small-Block Gen III LR4:293 (4.8L);Chevrolet:Small-Block Gen III LS1:346 (5.7L);Chevrolet:Small-Block Gen III LS2:364 (6.0L);Chevrolet:Small-Block Gen IV LMF:325 (5.3L);Chevrolet:Small-Block Gen IV LY5:325 (5.3L)

Fitment:
Cadillac Escalade Base 2007
Cadillac Escalade ESV Base 2007
Cadillac Escalade EXT Base 2007
GMC Sierra 1500 Denali 2007
GMC Yukon Denali 2007
GMC Yukon XL 1500 Denali 2007