Garrett GTX42R 66.8mm Class Racing Turbocharger w/o Turbine Housing GTX4294R BB

This is a GTX4294R that is legal in a class with 67mm compressor wheel limitations. Its one of the most powerful turbochargers you can get in this size class, and is perfect if you are trying to get the absolute most power out of this size turbo. This turbo does not come with a turbine housing, but it can be dropped into any existing GT42 turbine housing.
Garrett's ball bearing cartridge has proven its worth in the highest level of motorsports where it has been the bearing system of choice in CART FEDEX ChampCar Series, 24 Hours of Le Mans, Pikes Peak International Hill Climb, World Rally Championship, and most recently Drag Racing. These premier racing customers demand no less than the best in durability, reliability, and power on demand. One key contributor to this performance lies in the ball bearing cartridge where it is, by design, surrounded by a thin film of oil. The oil film damps out destructive vibrations that would otherwise compromise turbo durability.