Flowmaster Signature Series Cat-Back Exhaust System

2025–2026 Ram 1500 3.0L Standard and High Output

738198

Overview:

The Flowmaster Signature Series Cat-Back Exhaust System is engineered specifically for the 2025–2026 Ram 1500 equipped with the 3.0-liter Standard and High Output engines. Designed to enhance both performance and sound, this exhaust system offers Ram owners a premium upgrade that reflects their personal style and driving demands. Whether you drive a 2-wheel or 4-wheel drive model, this system delivers a robust exhaust note and improved power without compromising factory fitment or reliability.

Ideal for enthusiasts looking to maximize their truck’s potential, the Signature Series Cat-Back system transforms the factory exhaust into a true dual setup on Standard Output models, matching the performance and sound characteristics of High Output variants. This upgrade not only elevates your Ram 1500’s presence but also supports future engine modifications with a foundation built for enhanced airflow and durability.

Key Features:

Flowmaster’s Signature Series Cat-Back Exhaust System incorporates advanced design and technology to deliver superior performance and sound quality. Key features include:

• Constructed from premium brushed 304 stainless steel for long-lasting corrosion resistance and a polished appearance
• True dual exhaust configuration for Standard Output models, matching High Output and RHO setups
• Dual 3.00-inch mandrel-bent inlet pipes for optimized exhaust flow
• Custom tuned Signature Series muffler crafted from 304 stainless steel for a deep, aggressive tone
• Exclusive Flowmaster Scavenger X-Pipe featuring D-Port technology to maximize exhaust pulse velocity
• Dual 3.0-inch mandrel-bent tailpipes exiting through factory bumper cutouts with 4.5-inch black chrome tips
• Tuned resonators integrated into tailpipe assemblies to reduce cabin drone and maintain comfort
• Hand TIG welded construction for superior weld quality and improved heat management
• Compatible with both 2WD and 4WD Ram 1500 models equipped with 3.0L engines
• Utilizes all factory hanger locations and connections for a straightforward installation

Construction & Design:

The Flowmaster Signature Series Cat-Back Exhaust System is meticulously crafted from 304 stainless steel, known for its exceptional durability and resistance to rust and corrosion. The brushed finish not only enhances the visual appeal but also ensures the system maintains its premium look over time. Each component is hand TIG welded, providing strong, precise welds that improve structural integrity and heat dissipation during operation.

The system’s mandrel-bent tubing preserves smooth exhaust flow by eliminating restrictions and sharp bends, which contributes to improved engine efficiency and power output. The inclusion of Flowmaster’s proprietary Scavenger X-Pipe with D-Port technology further optimizes exhaust scavenging, resulting in enhanced pulse velocity and a richer exhaust note.

Performance & Sound

This cat-back exhaust system delivers measurable performance gains, with maximum dyno-tested improvements of up to 26 horsepower and 23 lb-ft of torque at the rear wheels on High Output models. The true dual exhaust configuration on Standard Output trucks unlocks additional power potential and supports future engine upgrades.

Sound is a defining characteristic of the Signature Series, offering a deep, aggressive tone that commands attention without overwhelming cabin comfort. Tuned resonators integrated into the tailpipe assemblies effectively reduce drone, ensuring a pleasant driving experience whether cruising or accelerating hard.

Installation & Fitment:

The Flowmaster Signature Series Cat-Back Exhaust System is designed for a direct bolt-on installation using all factory hanger locations and connections. This ensures a secure fit without the need for cutting, welding, or additional modifications. The system fits both 2-wheel and 4-wheel drive 2025–2026 Ram 1500 models equipped with the 3.0L Standard or High Output engines, maintaining factory exhaust outlet positions for a clean, OEM-style appearance.

Installation can be completed at home with basic hand tools, and the kit includes detailed instructions along with all necessary hardware to simplify the process.

What's Included:

• Dual 3.00-inch mandrel-bent inlet pipes
• 304 stainless steel Signature Series muffler
• Flowmaster Scavenger X-Pipe with D-Port technology
• Dual 3.0-inch mandrel-bent tailpipes with tuned resonators
• 4.5-inch black chrome exhaust tips
• All required mounting hardware and clamps
• Comprehensive installation instructions

Ideal For:

This exhaust system is perfect for Ram 1500 owners who want to enhance their truck’s performance and sound without sacrificing reliability or factory fitment. It suits enthusiasts seeking a bold exhaust tone, improved horsepower and torque, and a durable, high-quality build. Whether daily driving, towing, or weekend cruising, the Flowmaster Signature Series Cat-Back Exhaust System offers a balanced upgrade that complements the 3.0L Ram 1500’s capabilities.

Flowmaster is an iconic exhaust brand famous for signature exhaust tone and performance mufflers, as well as complete axle-back and cat-back systems. Built for muscle cars, trucks, and performance builds, Flowmaster systems are designed to improve flow and deliver the sound character enthusiasts chase.