Flowmaster Force II Single Exhaust System - 1999-2006 Chevy/GMC/2007 Classic 1500 4.3L/4.8L/5.3L H77403FS Finned aluminum coolers have 3/4"NPT

Finned aluminum coolers have 3/4"NPT ends and T-slots for easy mounting

performance and economy

and 3/4" O

1984-1987 Ford E-150 Econoline

2007-2009 Workhorse R26

Flowmaster Force II Single Exhaust System - 1999-2006 Chevy/GMC/2007 Classic 1500 4.3L/4.8L/5.3L H77403FS Finned aluminum coolers have 3/4"NPTFor the person who wants a subtle custom appearance with all the benefits that a Flowmaster Cat back exhaust system provides. S. O. S. (Single out side) systems are the perfect choice. Force II systems delivers a mild exterior tone and moderate to mild interior tone, and are suited to customers looking for efficiency improvements without a lot of noise. Especially recommended for towing applications. Like all Flowmaster systems, the benefits include