Flowmaster 40 Series Delta Flow Chambered Muffler BIOTHANE COLLAR Approximate rated 500hp (depending on

Approximate rated 500hp (depending on truck configuration)

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Flowmaster 40 Series Delta Flow Chambered Muffler BIOTHANE COLLAR Approximate rated 500hp (depending onThis 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 409S stainless steel and fully MIG welded for maximum durability.