Flowmaster American Thunder Direct-Fit Muffler - 817568

universal fit logo



This Flowmaster American Thunder direct-fit muffler fits all 2009-2020* (*Classic body) RAM 1500 trucks equipped with the 5.7L Hemi and factory dual tailpipes. Features include full stainless steel construction, a 3.00-inch mandrel-bent inlet pipe flowing into a 50 Series HD muffler with large 4.00-inch internals and a built-in resonator helping keep the interior sound down to a minimum, while still delivering a deep moderate aggressive tone outside the vehicle. The system attaches to the factory hanger locations and includes all necessary hardware for a quick and easy installation that you can do at home. Covered by our Lifetime Limited Warranty.

Customer Reviews

5.0 5.0
1 Customer ratings


Question & Answers

1 Answered question

Q: It says not vehicle specific- but only talks about being for Dodge Ram in the description, will it work on a 13 f-150? Answer this question

A: No, this exhaust system is for the Dodge Ram 1500 only.

Answered by Christian from 4WP HQ on 12/24/2020


For over 30 years, Flowmaster has been producing exhaust products to combat noise issues that first cropped up on race tracks in California. The question was how to reduce sound without compromising performance? Advanced engineering and ample testing set Flowmaster's product line apart from competitors and a few of their more noteworthy parts include chambered mufflers, laminar flow designs and high flow catalytic converters. We carry Jeep exhaust pipes, exhaust flanges and complete exhaust systems among other Flowmaster products. The company's patented technologies, innovative designs and focus on performance keep Flowmaster at the forefront of aftermarket exhaust manufacturers. Shop Flowmaster Exhaust Now


Sign up to receive deals by email!

Sign up to receive deals by text!

Please Enter valid number

By submitting, you agree to receive recurring autodialed marketing text msgs (e.g. cart reminders) to the mobile number used at opt-in from 4 Wheel Parts (4WP) on 21208. Consent is not a condition of purchase. Msg frequency may vary. Msg & data rates may apply. Reply HELP for help and STOP to cancel. See Terms and Conditions & Privacy Policy