Description
Overview
The Flowmaster American Thunder Cat-Back Exhaust System is a true dual performance upgrade engineered to transform the sound and flow of your 2025-2026 RAM 1500 equipped with the 3.0-liter Standard Output or High Output engine. Designed to fit both 2- and 4-wheel drive models, this American Thunder series system lets you customize your RAM 1500 to match your personality while backing it up with real performance-minded engineering. Constructed from durable 409 stainless steel, it’s built for years of trouble-free service under demanding conditions.
Sound & Performance
At the heart of the system sits a custom-tuned 409 stainless steel American Thunder series muffler with a dual 3.00-inch inlet and dual 3.00-inch outlet, delivering the aggressive-to-moderate exhaust tone that has made Flowmaster a household name. Feeding that muffler are dual 3.00-inch inlet pipes, while Flowmaster’s exclusive Scavenger X-Pipe with proprietary D-Port technology maximizes exhaust pulse velocity to help create a deep, purposeful exhaust tone. Tuned chambered resonators integrated into the tailpipe assemblies keep the cabin experience comfortable, so you get an aggressive exterior note without droning fatigue on long drives.
Fit & Finish
The dual 3.0-inch mandrel-bent tailpipes exit in the stock location through the factory bumper cutouts, finished with 4.5-inch black ceramic coated tips for a clean, factory-integrated appearance with an unmistakable upgrade in presence. Every bend is mandrel-formed to maintain smooth, unrestricted flow from front to back. The silver pipe finish and blacked-out tips give your truck a purposeful, dialed-in look.
Key Highlights
- True dual, cat-back design for the 2025-2026 RAM 1500 3.0L Standard Output and High Output engines
- Manufactured from 409 stainless steel for long-lasting durability
- Custom-tuned American Thunder series muffler with dual 3.00-inch inlet and outlet
- Exclusive Scavenger X-Pipe with D-Port technology for maximum exhaust pulse velocity and a deep tone
- Dual 3.0-inch mandrel-bent tailpipes with 4.5-inch black ceramic coated tips exiting in the factory bumper cutouts
- Tuned chambered resonators for a comfortable in-cab experience
- Fits both 2WD and 4WD models; CARB (California) compliant
Why It’s Different for Standard Output Trucks
On Standard Output models, this system converts the exhaust into a true dual configuration like the High Output and RHO trucks. That conversion allows for better overall performance gains and sets your RAM 1500 up to work better with any future engine modifications, making it a smart foundation for a longer-term build.
Choose the Flowmaster American Thunder Cat-Back Exhaust System to add aggressive sound, improved flow, and a factory-fit finish to your RAM 1500. Please note this product carries a California Proposition 65 warning.
