The GM 6.6L Duramax L5P is the latest in the Duramax lineup. Sharing almost only the bore and stroke dimensions of previous years, the L5P is an all-new ground up design. The GM redesign allows the L5P to produce more torque and horsepower than ever before with an SAE-certified 445 horsepower (332 kW) and 910 lb.-ft. (1,234 Nm). XDP is constantly working with the automotive aftermarket to bring new and innovative products to market for your L5P Duramax. Make sure to check back often as we update our site with new products from the many manufacturers we carry.