The Max Air Flow Bundle includes the Billet Thermostat Housing Kit, perfect for any truck! This design is an improvement over the factory setup, which was only concerned with appearance. By relocating the coolant hose over the driver's side valve cover, HSP Diesel has created more space for engine maintenance and upgrades. Plus, we've upgraded to Billet aluminum CNC machined aluminum for a sleeker and higher-performing look!
The Cold Air Intake that comes in the Max Air Flow Bundle
The HSP Diesel Cold Air Intake brings major changes to the factory system. With a 4 1/2" mandrel-bent intake tube, it can bring in more air. Plus, using the HSP Diesel heatshield box means only cold air is taken in, not the heat from the engine bay. On average, this has resulted in a 20 horsepower and 58 pounds of torque increase on the dyno.