89-02 Dodge Cummins II Super PhatShaft 66 Turbo - SPS6680

The Super PhatShaft 66 was designed for trucks that have multiple fueling upgrades. This was the first high performance PhatShaft and was the first turbocharger on the market to utilize the 71mm exhaust wheel. It features a 66mm extended top compressor wheel, but what makes the Super Phat Shaft 66 special is the 71mm exducer exhaust wheel and modified exhaust housing. The wastegate has custom dual over-sized passages and a wastegate spacer plate for maximum efficiency. Like all Phat Shaft turbochargers it is equipped with dual grooved bearings and an adjustable boost elbow. The Super PhatShaft 66 can support up to 750hp. HPX40 Downpipe is required for installation on 1994-2002 Cummins trucks