Flowmaster 40 Series Delta Flow 3" Center In 2.25" Dual Out Universal Muffler medium/heavy duty 1999–2006 GMC Sierra 1500 5

1999–2006 GMC Sierra 1500 5

See chart for suggested power and plate load guide

densest air possible using the No Limit Fabrication Stage 2 Air-to-Water Intercooler (Raw Finish)

and is easy to wipe clean during fluid changes

2007-2013 Chevy Avalanche 1500

Flowmaster 40 Series Delta Flow 3" Center In 2.25" Dual Out Universal Muffler medium/heavy duty 1999–2006 GMC Sierra 1500 5This two chamber design incorporates Flowmaster's Delta Flow technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over standard 40 series. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability. Features: No internal packing to blowout Race proven Delta Flow technology Excellent Street Strip and Off Road