Flowmaster American Thunder Cat-Back Exhaust System - 2-1/2 in Tailpipe - 3-1/2 in Tips - GM Fullsize Truck 2014-19 R09J0032XL 8 bolt rear flange and

8 bolt rear flange and center counterweighted

Race Tuned Mechanical Advance - No Vacuum Advance

Simply attach the Magnetic Hose Coupler to the included 12" expandable hose and connect to the Coupler Base and you’re ready to go

9LSU sensor and can utilize both the factory calibration resistor and free-air calibration methods**

Dip Stick (-6 AN cap) 20" can be cut to the appropriate length needed

Flowmaster American Thunder Cat-Back Exhaust System - 2-1/2 in Tailpipe - 3-1/2 in Tips - GM Fullsize Truck 2014-19 R09J0032XL 8 bolt rear flange andFlowmaster's American Thunder cat back exhaust system for the 2014 2018 GM 1500 trucks (also fits 2019 classic models) is perfect for the person looking for an aggressive sound level 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 Dual Out Side) emissions legal system, for the Crew Cab and Double Cab models with 4. 3L V6 or 5. 3L V8 engine, features a