Flowmaster 40 Series Delta Flow 2.5" Offset in 2.5" Center Out Universal Muffler blow off valve upgrades but with a few more

but with a few more features

Mirror-polished finish provides a show-quality shine

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7L Powerstroke truck

Flowmaster 40 Series Delta Flow 2.5" Offset in 2.5" Center Out Universal Muffler blow off valve upgrades but with a few moreThis 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