BD uses their own version of thrust collar and backplate as well their own designed sintered brass 360-degree 6-pad thrust bearing that reduces heat build-up and increases durability. Using a proven Ballistic Billet 65.9 mm compressor wheel improves centrifugal strength at high rotating speeds and boost pressures. BD's exclusive Heavy Duty Waste Gate controls maximum boost pressure and 0.84 A/R turbine housing reduces exhaust temperatures and smoke levels on acceleration without surging. Outperforms the stock turbocharger and improves fuel economy and a great fit for all off-road, street and highway 7.3L Power Stroke applications. Plus, it is C.A.R.B. compliant!