S&B Helmet Particle Separator Hose 4 Foot Hose Kit Driveshafts D-701-38) The OEM Duramax cast-aluminum

D-701-38) The OEM Duramax cast-aluminum cylinder heads fall short over time - the different heat expansion rates between cast-iron engine block and cast-aluminum cylinder head cause head gasket scrubbing and eventually blown head gaskets

your on-ramp merging speeds and passing times are greatly improved

Accommodates stock mounting points

This prefilter specifically Fits our 5 x 7 Inch Air Filters

Monster head pipe provides a restriction-free path out of the turbocharger for quicker response

S&B Helmet Particle Separator Hose 4 Foot Hose Kit Driveshafts D-701-38) The OEM Duramax cast-aluminumHelmet Particle Separator Hose Kit. Details: Black Sold as a Kit