Video: Flowmaster’s New American Thunder Cat-Back Exhaust for 6.4L Hemi ’14-19 Ram 3500

Do you own a 2014-2019 Ram 3500 with the 6.4L Hemi engine and can’t stand that quiet factory single exhaust pipe? Do you want your Ram to sound like a modern Hemi really should?

Well, Flowmaster has the answer for you! Flowmaster’s new American Thunder series cat-back exhaust system uses Delta Flow technology to increase performance and deliver a deep, powerful sound.

This new stainless steel American Thunder cat-back exhaust system provides improved performance and fuel economy while producing a moderate tone inside and outside the truck. Constructed from 16-gauge mandrel-bent 409 stainless steel tubing, the 3.5-inch inlet pipe flows into a 50 Series HD muffler for a deep moderate performance tone.

The dual 3-inch mandrel-bent tailpipes utilize the factory hanger locations for an easy installation and the system is finished off with a pair of large 4-inch polished 304 stainless steel tips. The system comes with two sets of tailpipe exits giving you the option of either exiting straight-out the back under the bumper or out the sides behind the rear wheels.

The kit includes easy to follow instructions and all of the necessary hardware. It’s also covered by Flowmaster’s Lifetime Limited Warranty. Please note that it fits both two and four wheel drive trucks with single or dual rear wheels however it does not fit trucks with the factory air bag rear suspension option.

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Cody Krueger

Car Feature Editor – Since the age of 4, Cody has been obsessed with everything Mopar. On Christmas of 1998, Cody's parents gave him a rusty '69 Charger shell that his father saved from a field. Cody's garage still features that '69 Charger as well as the additions of a '71 Charger R/T, '71 Super Bee, '73 Duster, '08 Challenger SRT8 and a '13 Ram 3500. Cody can truly and proudly say that he is a true Mopar nut in love with all types of Mopars!

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