Super 44 - 2.50 Offset In / 2.50 Same Side Out - Aggressive Sound 2010-gmc-yukon-xl-2500-esi6437449 Cylinder Head Stud Kit -

Cylinder Head Stud Kit - 12 Point Nuts - Chromoly - Black Oxide - Undercut - Small Block Chevy - Kit

Camshaft Bearing - Standard Journal - Pontiac 4-Cylinder / V8 - Kit

090 in Long - Bushed - 3/8 in Cap Screws - 8740 Bolt - Forged - Steel - Small Block Ford - Set of 8

L99 - Recommended for modified applications

437 in OD - Set of 16

Super 44 - 2.50 Offset In / 2.50 Same Side Out - Aggressive Sound 2010-gmc-yukon-xl-2500-esi6437449 Cylinder Head Stud Kit -Flowmaster's Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a powerful rich tone and is the most aggressive, deepest sounding, highest performing four inch case street muffler we've ever built! Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.