PureFlow R4SBC137 Raptor 4G 150 GPH Fuel Pump 11-14 6.6L GM Duramax LML 2003 Dodge/Ram 5.9L Cummins Valve Springs are recommended for

Valve Springs are recommended for engines that are pushing over 45psi boost and/or 3200rpm

Makes up to 500+ RWHP and 1100+ ft-lbs of torque

perforated core design features heat resistant packing that not only reduces backpressure but also cuts down your EGTs with an over all boost in power and performance

Generic pullers will not allow for the injector to be removed evenly causing the injector to rock side to side

5" Stage 2 Suspension System is ICON's performance system for the novice off road enthusiast

PureFlow R4SBC137 Raptor 4G 150 GPH Fuel Pump 11-14 6.6L GM Duramax LML 2003 Dodge/Ram 5.9L Cummins Valve Springs are recommended forFeaturing Pureflow's 4G technology, this Raptor 4G can reliably deliver your Duramax engine up to 150 gallons per hour of fuel in a compact and quiet design, all backed by a lifetime guarantee. From the factory, your Duramax is not equipped with a low pressure lift pump. Rather, it puts all of the load on the CP4 injection pump to inevitably "suck" the fuel from the tank. To make matters worse, it has been proven that the move in 2011 to a CP4 from