XDP X220 Series Head Stud Kit For 2001-2016 Chevrolet/ Gmc - Silverado/ Sierra accessories This universal-fit resonator features a

This universal-fit resonator features a 16" polished T304 stainless steel body with a 20" overall length

2011-2014 Ford-F150

Round 4" body provides strength and smooth exhaust flow

2008 Chevrolet/GMC 6

which can be restrictive

XDP X220 Series Head Stud Kit For 2001-2016 Chevrolet/ Gmc - Silverado/ Sierra accessories This universal-fit resonator features aProduct Description Enhance the performance and reliability of your 2001 2016 GM 6. 6L Duramax LB7 LLY LBZ LMM LML with the XDP X220 Series Head Stud Kit XD3006HS. Designed to withstand high horsepower applications, this kit replaces the factory head bolts which often fail under increased pressure. The head studs are constructed from 8740 Chrome Moly Steel with an added proprietary element, ensuring superior durability and resistance to stretching.