XDP X220 Main Stud Kit For 2001-2005 Chevrolet/ Gmc - Silverado/ Sierra wheels Independent testing has shown EGT

Independent testing has shown EGT reductions of 50–100°F

Features include a throw reduction of 38% over the factory shifter

Affordable Performance: Cost-effective alternative to premium Morimoto XB series

With Dynojet’s Can-Am Wastegate Kit

XDP X220 Main Stud Kit For 2001-2005 Chevrolet/ Gmc - Silverado/ Sierra wheels Independent testing has shown EGTProduct Description The XDP X220 Main Stud Kit XD3007MS is an essential upgrade for your 2001 2005 GM 6. 6L Duramax LB7 LLY, whether you're setting up for competition or street use. OEM main bolts often fail under the pressure of high horsepower engines. This kit, constructed from 8740 Chromoly with an added proprietary element, provides superior durability and ensures the studs won't stretch like factory bolts. The threads are rolled after heat