40 Delta Flow® - 2.50 Offset In / 2.25 Dual Out - Aggressive Sound GM Diesel " you'll be able to take

you'll be able to take on any terrain with confidence

Comes with intake valve springs

Trucks with automatic Tranmissions are suggested to also install an AutoLoc for electronic controlled lock-converters

Will not fit early 2011 trucks with 8-bolt flex plate - will have to update to 6 bolt flex plate

vapor and water

40 Delta Flow® - 2.50 Offset In / 2.25 Dual Out - Aggressive Sound GM Diesel " you'll be able to takeThis 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.