40 Delta Flow® - 2.00 Center In / 2.00 Offset Out - Aggressive Sound 2007-audi-a6-quattro-base-esi5668968 5TH WHEEL OEM EXTENSION GM/FORD

5TH WHEEL OEM EXTENSION GM/FORD 10FT

5" STAINLESS CAB LENGTH RUNNING BOARDS WITH BLACK TRIM

The Super 40 has that deep powerful sound of the Original 40 series but with all the benefits of performance and low interior resonance from the Delta Flow® technology

WESTCAN SILVER ALUMINUM REAR RACK INSTALL KIT ' 99-26 SUPER DUTY

40 Delta Flow® - 2.00 Center In / 2.00 Offset Out - Aggressive Sound 2007-audi-a6-quattro-base-esi5668968 5TH WHEEL OEM EXTENSION GM/FORDThis 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.