Description
Overview
The Flowmaster Signature Series Cat-Back Exhaust System transforms your 2025–2026 RAM 1500 into a true dual-exhaust performance truck with the sound, style, and flow that Flowmaster is known for. Engineered specifically for RAM 1500 models equipped with the 3.0-liter Standard Output and High Output engines, this complete cat-back kit is a straightforward way to customize your truck’s personality while adding serious under-hood character. On Standard Output models, the system converts the factory setup into a true dual configuration just like the High Output trucks run from the factory.
Built from brushed 304 stainless steel, this Signature Series system is designed for years of trouble-free service, lasting performance, and high-end looks. Every system is hand TIG welded for maximum build quality and better heat control during construction, so you get a fit and finish worthy of a premium exhaust.
Performance & Sound
The system starts with dual 3.00-inch inlet pipes feeding a custom-tuned 304 stainless steel Signature Series muffler for great sound and maximum performance. At the heart of the flow is Flowmaster’s exclusive Scavenger X-Pipe with D-Port technology, which maximizes exhaust pulse velocity and helps create a deep, aggressive exhaust tone. Chambered resonators on both the rear left and rear right tailpipe assemblies keep things comfortable inside the cab, delivering an aggressive-yet-moderate sound level that turns heads without droning on the highway.
Fitment & Installation
Dual 3.0-inch mandrel-bent tailpipes exit in the stock location through the factory bumper cutouts and are finished with 4.5-inch black chrome tips featuring an embossed logo. The system fits both 2- and 4-wheel drive RAM 1500 models and mounts using the factory hangers for a clean, bolt-on installation. This kit is CARB (California) compliant, carries Emission Code 5, and includes the California Proposition 65 warning.
Key Highlights
- True dual cat-back system for the 2025–2026 RAM 1500 with 3.0L Standard and High Output engines
- Brushed 304 stainless steel construction with hand TIG-welded joints
- Custom-tuned Signature Series muffler (20.00-inch length, center inlet, dual 3.00-inch outlets)
- Exclusive Scavenger X-Pipe with D-Port technology for maximum pulse velocity and deep tone
- Dual 3.0-inch mandrel-bent tailpipes with 4.5-inch black chrome, embossed-logo tips
- Chambered rear resonators (6.10 x 6.10 x 8.25) for a comfortable in-cab experience
Whether you’re chasing better sound, a more aggressive presence, or the true dual look on a Standard Output truck, the Flowmaster Signature Series Cat-Back delivers the performance and premium finish RAM owners want. Choose the configuration that fits your driving style and give your RAM 1500 the exhaust note it deserves.













