Flowmaster is excited to announce our new premium quality exhaust line - Signature Series. Featuring high quality brushed 304 stainless steel and black chrome tips, the Signature Series line is hand TIG welded in the USA. Initial applications for mid and full size trucks (late model muscle cars coming soon) will produce an aggressive to moderate performance sound level. Installer friendly design allows for an at home installation with basic hand tools.

More Features

• Brushed 304 Stainless Steel Offers Maximum Corrosion Resistance For A Cleaner And More High-End Appearance
• TIG Welding Offers A More Precise Weld, Better Heat Control And High-End Appearance Compared To MIG Welding
• Signature Series Mufflers Offer An Aggressive To Moderate Performance Tone And Increased Performance Over The Stock System
• Installer Friendly Design Allows For An At Home Installation
• Brushed Appearance Removes Tooling Marks For A Cleaner Overall Look

Flowmaster is excited to announce our new premium quality exhaust line - Signature Series. Featuring high quality brushed 304 stainless steel and black chrome tips, the Signature Series line is hand TIG welded in the USA. Initial applications for mid and full size trucks (late model muscle cars coming soon) will produce an aggressive to moderate performance sound level. Installer friendly design allows for an at home installation with basic hand tools.

More Features

• Brushed 304 Stainless Steel Offers Maximum Corrosion Resistance For A Cleaner And More High-End Appearance
• TIG Welding Offers A More Precise Weld, Better Heat Control And High-End Appearance Compared To MIG Welding
• Signature Series Mufflers Offer An Aggressive To Moderate Performance Tone And Increased Performance Over The Stock System
• Installer Friendly Design Allows For An At Home Installation
• Brushed Appearance Removes Tooling Marks For A Cleaner Overall Look

Flowmaster's® Signature Series Cat-back true dual exhaust system for the 2025 RAM 1500 with the 3 liter Standard and High Output engines gives you a great way to customize your RAM 1500 to your personality. This performance exhaust system fits both 2/4 Wheel drive models and is manufactured from brushed 304 stainless steel for years of trouble-free service, performance and high end looks. This Signature Series systems in hand Tig welded for maximum quality and better heat control during construction. Features include dual 3 inch inlet pipes leading into a custom tuned 304 stainless steel Signature Series muffler for great sound and maximum performance. This Cat-back system includes Flowmaster’s exclusive Scavenger X-Pipe with our D-Port technology for maximum exhaust pulse velocity and helps to create a deep exhaust tone. The dual 3 inch mandrel-bent tailpipes exit in the stock location in the factory bumper cut outs with 4.5 inch black chrome tips. Included in the tailpipe assemblies are tuned resonators that help maintain a comfortable experience in the cab. On Standard Output models this system turns the exhaust into a true dual style system like the High Output and RHO models. This will allow for better overall performance gains and will work better with any future engine modifications. Max dyno gains of 26 horsepower and 23 feet-pound at the rear wheels (HO models) deliver power you can feel. The system uses all the factory hanger locations and connections for an easy installation that you can do at home. Kits include installation instructions and all necessary hardware.

More Features

• 3 Inch Mandrel Bent 16 Gauge 304 Stainless Steel Tubing Maximizes Exhaust Flow And Improves Durability
• Kit Features Complete Hardware And Factory Styled Hangers In The Stock Locations For An Easy Installation
• A Signature Series Muffler Delivers A Deep, Aggressive To Moderate Performance Tone And Improves Exhaust Flow
• Max Increases Of Up To 26 Horsepower And 23 Feet-Pound Over The Stock Exhaust At The Wheels
• Converts Standard Output Models To A True Dual Style System Like On High Output And RHO Models

Flowmaster's® Signature Series Cat-back exhaust system for the 2024 to 2025 GM 1500 trucks with the 6.2 liter engine is a great way to customize your Silverado or Sierra to your personality. This performance exhaust system fits both 2/4 Wheel drive models and is manufactured from 304 stainless steel for years of trouble-free service and performance. Features include a 3-1/2 inch inlet pipe leading into a specialty tuned Signature Series style muffler for great sound and maximum performance. This cat-back system has dual 2-1/2 inch mandrel-bent tailpipes that exit in the bumper cut-out locations and retains the factory exhaust bezel for a clean look. Included in this cat-back system is active valve control with an integrated turndown. This allows you to control the factory valve from the dash with the different drive modes for full control of your sound level. Run the valve closed in the Normal drive mode, or open the valve in Sport or Off-Road mode for maximum sound. Max dyno gains of 15 horsepower and 13 pound-feet at the rear wheels deliver power you can feel. These systems use all the factory hanger locations and connections for an easy installation that you can do at home. Kit include installation instructions and all necessary hardware.

For the person who is looking for a complete Header-back dual exhaust system with an aggressive tone. These systems are mandrel bent for maximum performance. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and Mileage. Designed for an easy fit.

More Features

• Mandrel Bent 16 Gauge 409 Stainless Steel Tubing

For the person who is looking for a complete Cat-Back dual exhaust system with an moderate tone. These systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems deliver a moderate interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage.

This bolt-on emissions-legal system features a 50 HD Series™ performance muffler with large 4 Inch internals and dual mandrel-bent 2-1/2 Inch 409 stainless steel tailpipes for maximum performance and a deep powerful sound. The system comes with your choice of tailpipe exits and can be configured for either straight out the back under the rear bumper for a muscular look, or out the sides behind the rear wheels which is ideal for towing. The tailpipes are finished off with a pair of large 3-1/2 Inch polished 304 stainless steel tips .

More Features

• Features Hangers And Hardware For An Easy Installation
• Dual 3-1/2 Inch Polished 304 Stainless Steel Tips
• Mandrel-Bent 16-Gauge Stainless Steel Tubing
• Uses The Factory Hanger Locations
• Connects After Factory Resonator

For the person who is looking for a complete Cat-Back dual exhaust system with an moderate tone. These systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems deliver a moderate interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage.

For the person who is looking for a complete Cat-Back dual exhaust system with an moderate tone. These systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems deliver a moderate interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage.

Flowmaster's American Thunder cat-back exhaust system for the Toyota Tundra pickup trucks with the 5.7 Liter or 4.6 Liter V8 engines is perfect for the person looking for an aggressive sound level with all of the performance benefits that you would expect from Flowmaster. This DOR/DOS (Dual Out Rear, Dual Out Side) bolt on 409S stainless steel system features dual 2.50 Inch tailpipes and 3.50 Inch polished stainless steel tips. This system is designed to fit regular cab/long bed, double cab/short bed and CrewMax models.

More Features

• Mandrel Bent Stainless Steel Construction
• Large 3.5 Inch Polished 304 Stainless Steel Tip
• Side Exit Tailpipes Ideal For Towing Applications
• Multiple Exit Styles Provided In Kit

The classic sound of a Flowmaster chambered exhaust, our American Thunder Series features mufflers tuned to deliver more power, torque, throttle response and mileage. Best of all, these exhaust systems take sedate vehicles and deliver that great performance tone especially designed for muscle car and truck fans. American Thunder is the most authentic Flowmaster muffler sound we offer.

More Features

• Aggressive Exterior With Moderate Interior Tone

This Flowmaster Outlaw cat-back exhaust system is custom designed perfect for the person looking for an aggressive interior and exterior sound levels with all of the performance benefits that you expect from Flowmaster. This bolt-on emissions-legal system is for the Crew Cab and Double Cab models and comes with your choice of tailpipe exits, either dual out the rear under the bumper, or dual out the sides behind the rear tires. System features stainless steel mandrel bent tubing flowing into a Super 10 series muffler and exiting with dual 3-Inch stainless steel mandrel bent tailpipes. The system uses the factory hanger locations and is finished off with a pair of large 4-Inch black ceramic coated stainless steel tips.

More Features

• 409 Stainless Steel Construction Delivers Extra Durability And Improved Long-Term Corrosion Resistance
• Dual Out The Rear Or Dual Out The Side Exit Options
• Large 4-Inch Black Ceramic Coated Tips

The new Flowmaster(R) Outlaw(R) cat-back exhaust system perfect for the person looking for maximum sound levels both inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster. This bolt-on emissions-legal system fits RAM trucks with either the 4.7L, or 5.7L Hemi engines and features all mandrel-bent stainless steel construction, one of our Super 10™ Series mufflers flowing into large 3-Inch mandrel-bent tailpipes for maximum sound and performance. The system comes with two sets of tailpipe exits, either straight out the back under the bumper, or exiting behind the rear wheels which is perfect for towing applications.

More Features

• 409 Stainless Steel Construction Delivers Extra Durability And Improved Long-Term Corrosion Resistance
• Black Ceramic Coated Stainless Steel Tips

These kits deliver the ultimate sound in aggressive exhaust systems by using a race-proven 3 Inch stainless steel Outlaw muffler with a 3 Inch dump style turn down exit with no tailpipes. As an Outlaw extreme system, this will deliver a very aggressive sound and tone both outside and inside the truck. The stainless steel system Features all of the necessary parts and hardware for an easy installation you can do at home. This system fits both 2/4 wheel drive Extended Cab and Crew Cab models only with 143-1/2 and 157-1/2-inch wheelbases.

Features Feature a 3 Inch mandrel-bent inlet tube flowing into an aggressive Super 10 series performance muffler with dual 2-1/2 Inch mandrel-bent tailpipes. The finishing touch is the large 4 Inch black ceramic coated stainless steel tips. The system comes with your choice of final tailpipe exits, either out the rear under the bumper for a muscular, or out the sides behind the rear tires if you tow an RV, boat or trailer. This system fits all 2/4 WD and Wheelbases, except Standard Cab/Short Bed models. Designed for an easy fit, this system Features all necessary parts, hardware for an easy installation you can do at home.

More Features

• Large 4 Inch Black Ceramic Coated Tips
• Features Rear And Side Tailpipes Exits

Flowmaster's Force II(R) line of exhaust systems are engineered as our quietest offerings, but will wake up your vehicles sound and power over the factory O.E. exhaust. You can generally expect a noticeable sound increase with a deep performance tone outside the vehicle, yet minimal interior drone in the cab area while cruising down the road enjoying all the performance benefits you've come to expect from Flowmaster(R). This bolt-on emissions-legal cat-back system features full stainless steel construction, uses the factory hanger locations, 50 Series HD™ performance muffler with large 4 Inch internals and dual 3 Inch mandrel bent tailpipes offering two tailpipe exits in one kit. Choose your tailpipe exit either located under the rear bumper for an aggressive dual exhaust look, or exiting out the sides behind the rear tires to prevent blowing exhaust on your boat or trailer when towing. The system is finished off with a pair of large 4 Inch polished logo embossed stainless steel tips for a modern look and Features instructions and all necessary hardware for an easy at home installation.

More Features

• Moderate Exterior Sound With Mild Interior Sound
• Large 4 Inch Polished 304 Stainless Steel Tips
• Dyno-Tuned For Maximum Performance
• Mandrel-Bent Stainless Steel Tubing
• 409S Stainless Steel Construction

The Outlaw® Cat-back exhaust system is perfect for the person looking for an aggressive exterior and interior sound levels and who is not afraid of the attention. System features dual 2-1/2 Inch mandrel-bent stainless steel tubing going into a Scavenger Series® X-pipe for maximum performance and sound, connecting to a pair of race-inspired Outlaw Series mufflers and mandrel bent tailpipes. The system is then finished off with 4-Inch black ceramic coated stainless steel tips with embossed Flowmaster® logos and exits out through the factory exhaust cutouts in the rear valance. Designed for an easy fit, this system features all necessary parts, hardware and easy to follow installation instructions. Also fits all-wheel drive models.

More Features

• 409 Stainless Steel Construction Delivers Extra Durability And Improved Long-Term Corrosion Resistance
• Exclusive Scavenger X-Pipe For Maximum Power
• Large 4-Inch Black Ceramic Coated Tips

The American Thunder(R) cat-back exhaust system and factory dual tailpipes is perfect for the person looking for a deep powerful exterior sound with all of the performance benefits that you would expect from Flowmaster(R). This bolt-on emissions legal system features all mandrel-bent stainless steel tubing leading into a 50 Series™ HD muffler to deliver maximum power and exterior sound quality, but with a moderately pleasant interior tone at cruising speeds. Other features include dual 3 Inch tailpipes that clear the factory spare tire and are finished with large 4 Inch black ceramic coated exhaust tips filling out the factory cutouts in the rear bumper. The system utilizes the factory hangers, features all necessary parts, hardware and instructions for an easy installation you can do at home.

More Features

• Large 4 Inch Black Ceramic Coated Tips
• Large 4 Inch 50 HD Muffler Internals
• Uses The Factory Hanger Locations For Easy Installation

The new American Thunder axle-back resonator delete kit features stainless steel construction with larger 2.50-inch mandrel-bent tubing replacing the small factory 2.25 Inch tailpipes and resonators. The "resonator delete" tailpipes exit in the stock location, utilize the factory hanger locations are finished off with large 4.50 Inch diameter black ceramic coated 304S stainless steel tips, giving your RAM some bark to go with its bite.

More Features

• Large 4.50 Inch Black Ceramic Coated Tips

The large dual 3 Inch stainless tailpipes ensure maximum power and a deep powerful sound. This bolt-on system comes with your choice of tailpipe exits, either dual out the rear, or dual out the sides behind the rear wheels which prevents blowing exhaust on your boat or trailer when towing. The system is finished off with a pair of large 4 Inch double wall black ceramic coated stainless tips for a custom look. Designed for a perfect-fit, the system Features installation instructions and all the necessary hardware for an easy at home installation. Maximum dyno gains of 10 hp and 13 Pound Per Feet. at the rear wheels.

More Features

• Large 4 Inch Black Ceramic Coated Stainless Tips
• Deep Powerful Tone Inside And Outside The Vehicle

This Flowmaster American Thunder(R) cat-back dual exhaust system is perfect for the person looking for an aggressive sound level outside the truck, with a moderate interior tone and all the performance benefits you would expect from Flowmaster(R). Features include a mandrel-bent 3-1/2 Inch stainless steel inlet tube flowing into a single 50 Series HD™ muffler, dual 2-1/2 Inch mandrel-bent stainless tailpipes replacing the factory resonators and giving your truck some growl. The tailpipes are finished off with quad 4 Inch black ceramic coated stainless steel tips that exit in place of the factory bolt-on exhaust bezels giving your truck an aggressive performance style and setting your truck apart from others, sending the message that you would rather lead than follow. Designed for an easy fit, this system features all necessary parts, detailed instructions and hardware for an easy at home installation.

More Features

• Removes Factory Resonators In Tailpipes
• Uses The Factory Hanger Locations For Easy Installation

This emissions-legal bolt-on system fits all Crew Cab and Double Cab models with 5.5 and 6.5 Foot long beds with factory dual exhaust option. Features comes with flex joint, Mandrel Bent 3.00 Inch stainless steel tubing flowing into a Super 40 Series muffler, dual 2.50 Inch Mandrel Bent stainless tailpipes that are finished off with quad 4.00 Inch black ceramic coated stainless steel tips exiting out under the factory exhaust bezels. Designed for an easy fit, this system comes with all necessary parts and hardware for an easy at home installation.

More Features

• Large 4 Inch Black Ceramic Coated Stainless Quad Tips
• Moderate Interior With Aggressive Exterior Tone

These kits deliver the ultimate sound in aggressive exhaust systems by using a 3-Inch race-proven Outlaw muffler and a single 3-Inch single dump style turndown exit under the bed, for the ultimate deep and aggressive sound that will get you noticed. The system is manufactured using 409 stainless steel for durability and uses the factory hangers. As an Outlaw extreme system, this will deliver a very aggressive sound both outside and inside the truck that will get you noticed. Features with all hardware and detailed instructions for an easy installation that can be done in less than an hour.

More Features

• Race Proven Outlaw Muffler Technology
• Extreme Sound For Extreme Lifestyles

Designed for the Crew Cab, Standard Bed models only, this bolt-on, emissions-legal system features a stainless steel 50 Series HD ™ muffler and large dual 3 Inch 409 stainless steel mandrel-bent tailpipes that can be configured to exit either dual straight out the back, or dual out the sides behind the rear wheels which is best suited for towing applications.

More Features

• Mandrel-Bent 16 Gauge Tubing For Maximum Exhaust Flow