Flowmaster 70 Series 3" Center In 3" Offset Out Universal Chambered Muffler weekly deals 2010 - 2013 GMC Sierra

2010 - 2013 GMC Sierra 6

Liquid gauge prevents erratic readings

PLEASE NOTE: On the Amber/Raptor edition

Mega Cab may require a aftermarket driveshaft and no indexing

6L V6 engine

Flowmaster 70 Series 3" Center In 3" Offset Out Universal Chambered Muffler weekly deals 2010 - 2013 GMC SierraThe 70 series utilizes Flowmaster's Delta Flow technology and an enlarged case for improved sound control along with mileage and power gains. Perfect for use on trucks, SUV's, RVs, tow vehicles and high performance street cars where space allows. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability. Features: Minimal interior resonance Mild to stock exterior exhaust tone Improved Horsepower, Torque and Engine Efficiency