AFE Power’s New Cold-Air Intake, Diamond Eye’s DPF-Back Dual Exhaust, and Hypertech’s Programmer Improve a 6.6L Duramax LML’s Overall Performance and Fuel Economy In the first installment of this ...
Given the current economic climate, GM has reviewed and updated its U.S. product portfolio and has decided to place on indefinite hold its previously announced plan to add a Duramax 4.5L V-8 diesel ...