Rev up your CAT engine with the PDI Big Boss Turbo - the ultimate upgrade for your Cat 3400|C15|C16. This turbo is a game-changer, built to withstand even the most extreme heat cycle conditions, delivering unbeatable reliability and performance. With a billet compressor wheel and stainless steel exhaust housing, this turbo is designed to improve throttle response and keep exhaust temperatures cooler.Made to support 600-750hp.The industry-exclusive stainless steel turbine housing design enhances airflow with consistency, while the 360-degree thrust bearing ensures maximum durability. Plus, the V-band style eliminates the need for traditional o-ring designs. Upgrade your engine today and experience the power and efficiency of the PDI Big Boss Turbo! A great upgrade for your CAT engine! Fits most engines with serial number prefixes 5EK, 6TS, 1LW, 1MM, 6NZ, 7CZ, and MBN.