Flowmaster American Thunder Cat-Back Exhaust System - 2-1/2 in Tailpipe - 3-1/2 in Tips - GM Fullsize Truck 2007-14 RS00400113 strong and non-corrosive

strong and non-corrosive

No more warped inserts or loose ring gears

135 Degree Ceramic Boot

and Chromium Nitride (CrN)

but if you are running a Multi-Step Retard or Timing Controller

Flowmaster American Thunder Cat-Back Exhaust System - 2-1/2 in Tailpipe - 3-1/2 in Tips - GM Fullsize Truck 2007-14 RS00400113 strong and non-corrosiveFlowmaster's American Thunder cat back exhaust system for the 2007 2013 GM 1500 trucks is perfect for the person looking for moderate to aggressive sound levels both inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster. This bolt on DOR DOS (Dual Out Rear or Dual Out Side) emissions legal system is for Extra Cab Standard Bed and Crew Cab Short Bed models only, with the 5. 3L gas engine (and 07 08