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is preset at 17 psi from the factory for a stock application
It helps reduce turbo lag while protecting other engine components
no longer keeping your food cool
If you didn't
Note: Does NOT include turbo gasket
PureFlow R4SBC136 Raptor 4G 150 GPH Fuel Pump 01-10 GM Duramax GM-12639421 is preset at 17 psiFeaturing 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 CP3 injection pump to inevitably "suck" the fuel from the tank. While this may work okay for stock trucks, even those with a mild tuner are not
