Cat-back System 409S - Dual Rear or Side Exit - American Thunder® -Moderate Sound Fits 2013 Ram 2500 and 3500 Trucks with a 5.7L Hemi V8 engine. Does NOT fit Chassis Cab model. Flowmaster's American Thunder Cat-Back exhaust system for the 2013 Ram 2500 and 3500 trucks is perfect for the person looking for improved horsepower and torque, with a deep performance tone inside and outside of the truck. This bolt-on DOR (Dual Out Rear) or DOS (Dual Out Side) emissions-legal system for the 5.7L Hemi V8 engine features a 3.00 front pipe that runs back to a 50 Series HD muffler and dual 2.50 mandrel bent stainless steel tailpipes. The tailpipes are supplied with two different exit locations for the customer to choose from. The system includes 3.00 polished 304S stainless steel tips. The exhaust system is manufactured in the USA and is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation. Features: Stainless Steel Construction Dyno Tuned For Maximum Performance Patented Delta Flow Technology Lifetime Limited WarrantyPit Stop USA offers Flowmaster Cat-back System 409S - Dual Rear or Side Exit-AmeriCan Thunder® - Moderate Sound 817647 at low everyda prices. Be sure to check out all of our products from Flowmaster including Flowmaster Dodge Truck / SUV Exhaust Systems.