Fitment Notes: Industrial Injection 2003-2004 5.9L 3rd Gen. – Super Phat Shat 66 Turbo. 400-750 HP – NOTE: **The 4″ HX40 style downpipe and clamp are required for installation on all 2003 and early 2004 3rd gen trucks.
HPX40 Downpipe is required for installation on 1994-2004 Cummins truck, 2005-2008 AUTOMATIC trucks will also require the HPX40 downpipe. Super Phatshaft (71mm T-wheel) Two fuel components – 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.