A Garrett exclusive ball bearing cartridge for unbeatable response, efficiency, and durability. Elimination of the thrust bearing eliminates failures at elevated boost levels. The 88mm GT compressor wheel provides 33% more flow than the stock 80mm wheel. Ported shroud housing improves compressor flow range for surge control 1.00 A/R turbine housing for free flowing exhaust with reduced back pressure and up to 200° F reduction in exhaust gas temperature. Maximum recommended boost level is 40psi.