63mm Billet LB7 Cheetah Turbocharger 01-04 Silverado/Sierra 2500/3500 Duramax Fleece PerformanceWake up your 2001 2004 LB7 with the drop in replacement Fleece Performance LB7 Cheetah Turbocharger. Featuring a Fleece Performance custom 63mm billet compressor wheel and high flow Inconel turbine wheel, this turbo can power your truck all the way up to 625RWHP! 100 percent Drop in Replacement Includes Installation Kit and LB7 High Flow Intake Horn No Core Charge! Fitment: For Federal Emissions equipped vehicles ONLY, does not fit California