Breathe Performance
Select a vehicle to find exact fit parts
Shop by Brand
AEM 
aFe Power 
Airaid 
AWE Tuning 
Banks 
BBK 
Corsa 
Diablosport 
Dinan 
Edge 
FASS Fuel Systems 
Holley 
Injen 
JLT 
Magnum FORCE 
S&B 
Sinister 
Sniper Motorsports 
Superchips 
Takeda 
Volant 
XDR Latest Products
Image
Product
Price
-
- Complete cat-back kit with a 50 Series Big Block muffler for a mild-to-moderate, non-droning tone
- 3.50-inch mandrel-bent stainless steel tubing plus a large 4.00-inch polished stainless tip
- Tailpipe exits behind the right rear tire, purpose-built for towing applications
- Uses factory hanger locations for a quick, at-home install with included hardware and instructions
- Emissions legal and CARB compliant, backed by a Limited Lifetime Warranty
- Purpose-fit for 2011-2019 Silverado/Sierra 2500HD/3500HD crew cab 6.0L trucks (2WD & 4WD, 6.5ft bed)
-
- Flow equal to or surpassing open pipe systems while dramatically reducing sound across the RPM range
- Large 3.50-inch inlet diameter supports high-flow, high-output performance builds
- Universal fitment works on street trucks, diesel pullers, RV pushers, and dirt or asphalt racing
- Moderate sound level delivers aggressive tone without excessive drone
- Durable high-temperature paint finish stands up to demanding race-duty conditions
- Dyno- and track-developed Pro Series engineering from Flowmaster
-
- Delivers improved performance, throttle response and mileage for heavy duty gas and diesel trucks
- Deeper, moderate tone with minimal resonance — aggressive without cabin drone
- Built from 16 gauge aluminized steel and fully MIG welded for maximum durability
- Ideal for trucks with modified engines that need reliable, controlled sound
- Universal fit with a 3.50-inch inlet for flexible exhaust integration
- High-temperature paint finish helps stand up to demanding under-truck conditions
-
- Flowmaster Delta Flow technology delivers excellent power characteristics with maximum sound reduction
- 30 Series Delta Force design engineered to meet stringent track decibel requirements
- Aggressive sound level built for Street/Strip and race applications
- 3.50″ inlet diameter supports high-flow performance exhaust builds
- Universal fitment gives fabricators flexibility for custom exhaust system integration
- High-temperature paint finish stands up to exhaust heat
-
- Deep, mellow moderate tone that stands apart from traditional chambered muffler sound
- Large 3.50-inch straight-through stainless steel core for smooth, efficient flow
- Reversible internal design installs in either direction to match your vehicle’s offsets
- Fully MIG-welded 409 stainless steel with embossed Flow FX logo for show-quality durability
- Compact case and economical price point ideal for Truck/SUV builds
- Universal fitment with dual 2.50-inch outlets for flexible exhaust system installs
-
- Straight-through 3.50-inch stainless steel perforated core delivers smooth flow with a deep, mellow tone
- Fully MIG-welded 409 stainless steel construction with embossed Flow FX logos for a show-quality look
- Moderate sound level offers a distinct alternative to the classic chambered Flowmaster sound
- Reversible internal flow design installs in either direction to match your offsets and routing
- Compact case and universal fitment make it ideal for street rod and custom builds
- Economical, show-quality performance muffler backed by genuine Flowmaster engineering
-
- Flowmaster 40 Series Delta Force race muffler with proven Delta Flow technology for strong power and an aggressive tone
- Delivers a substantial decibel reduction over open headers while keeping race-ready sound character
- 3.50-inch inlet diameter supports high-flow, higher-output performance exhaust builds
- Universal fitment gives fabricators freedom to build a custom cat back exhaust system
- High-temperature paint finish stands up to the heat of hard racing use
-
- Flowmaster Delta Flow technology delivers excellent power characteristics with good sound reduction
- Aggressive sound level with substantial decibel reduction over open headers for race applications
- 3.50″ inlet diameter and 9.50″ body width support high-flow exhaust systems
- Durable high-temperature paint finish stands up to demanding exhaust heat
- Universal fitment gives fabricators flexibility for custom exhaust builds
-
- Single-chamber design with Flowmaster Delta Flow technology for maximum race performance
- Aggressive sound level that still cuts noise noticeably compared to open headers
- 3.50-inch inlet diameter built for high-flow race applications
- Universal fitment makes it a versatile choice for custom race exhaust builds
- Durable high-temperature paint finish stands up to demanding exhaust heat
- Uses new hangers (not included) and exhaust tips sold separately for a fully custom setup
-
- Ball flange design replaces three-bolt connections for a leak-free, gasket-free seal
- Heavy 16-gauge aluminized steel with a thick 3/8-inch flange for lasting durability
- 3.50-inch ID inlet and 3.00-inch ID outlet with convenient slip-fit connections
- Reversible design with bolts and studs included for straightforward fabrication
- Sold in pairs and available in various sizes for matched dual-exhaust builds
-
- Muscular exterior sound from the Flowmaster 50 Series Big Block muffler, with a built-in Helmholtz chamber to tame interior resonance
- Large 3.50-inch mandrel-bent stainless steel tubing improves flow for noticeable performance gains
- Bolt-on installation using factory hanger locations makes fitment quick and hassle-free
- Polished 4.00-inch 304 stainless steel tip embossed with the Flowmaster logo for a clean finished look
- CARB compliant and emissions-legal, purpose-built for 2011-2018 Silverado/Sierra 1500 6.2L trucks
- Covered by Flowmaster’s Lifetime Limited Warranty
-
- Delivers a moderate to aggressive Flowmaster sound level both inside and outside the cab
- Stainless steel 50 Series HD muffler with dual 3.00-inch mandrel-bent tailpipes for smooth flow
- Configurable to exit dual out the sides or dual straight out the back
- Emissions-legal and CARB (California) compliant with Emission Code 5
- Bolt-on design includes all necessary parts and hardware for an easy fit
- Backed by Flowmaster’s Lifetime Limited Warranty and finished with polished 4.00-inch stainless tips
-
- Stainless steel 50 Series HD muffler with 4.00-inch internals delivers moderately aggressive interior and aggressive exterior sound
- Dual 3.00-inch mandrel-bent stainless tailpipes reduce restriction and maximize performance
- Choose side exits behind the rear wheels for towing or straight-out-the-back exits under the bumper
- Emissions-legal and CARB (California) compliant, so it’s street-legal in all 50 states
- Complete bolt-on kit with hardware, polished 4.00-inch tips, and easy-to-follow instructions
- Backed by Flowmaster’s Lifetime Limited Warranty
-
- Max dyno gains of 11 hp and 10 lb-ft at the rear wheels for stronger acceleration and towing
- 409 stainless steel construction with a straight-through Flow FX muffler for aggressive sound and no drone
- Fits 2020-2026 GM 2500HD/3500HD 6.6L gas trucks in both 2WD and 4WD
- Uses all factory hangers and connections for a simple, cut-free at-home install
- CARB (California) compliant and backed by Flowmaster’s Lifetime Limited Warranty
- Includes installation instructions and all necessary hardware
-
- Dyno-proven max gains of 15 hp and 13 lb-ft at the rear wheels on the 6.2L GM 1500
- Dash-controlled active valve with integrated turndown — quiet in Normal, loud in Sport or Off-Road mode
- 304 stainless steel construction with a Signature Series tuned muffler for aggressive yet moderate sound
- Dual 2.5-inch mandrel-bent tailpipes exit the factory bumper cut-outs and retain the OEM exhaust bezel
- Bolts on using all factory hangers and connections for an easy at-home installation
- CARB compliant and fits both 2WD and 4WD 2024–2026 Silverado / Sierra models
-
- Large case and internal tuning chamber deliver maximum sound control with a quiet, mild interior tone
- Built for heavy-duty use — full-size trucks, SUVs, RVs, and tow vehicles
- 16 gauge aluminized steel, fully MIG welded for maximum durability
- Supports mileage and power gains even under heavy loads
- 3.50-inch inlet with universal fitment for flexible exhaust builds
- High-temperature paint finish adds extra protection
-
- Adds up to 9 hp and 9 lb-ft at the rear wheels over the stock exhaust
- Aggressive Outlaw series sound, heard both inside and outside the truck
- Dual tailpipes configure straight-rear or side-exit — ideal for towing
- Includes stainless Outlaw muffler and polished 4.00-inch embossed tips
- CARB-compliant, emissions-legal bolt-on using factory hangers
- 409 stainless mandrel-bent piping backed by a Lifetime Limited Warranty
-
- Deep, moderate tone with minimal interior resonance — aggressive presence without cabin drone
- Rugged 409S stainless steel construction with a high-temperature paint finish for long service life
- 3.50″ inlet and outlet flow freely to support improved performance, throttle response, and mileage
- Purpose-built 50 Series HD design for heavy-duty gas and diesel trucks, including modified engines
- Universal fitment for flexible integration into custom exhaust builds
- Backed by Flowmaster’s Lifetime Limited Warranty
-
- Delta Flow® technology delivers performance and an aggressive, deep exhaust note in one muffler
- Larger case profile excels on forced induction and high-horsepower vehicles
- 16 gauge 409S stainless steel, fully MIG welded for maximum durability
- Low interior resonance means the powerful sound stays outside, not droning in the cabin
- Universal fit with a 3.50″ inlet for flexible custom exhaust builds
- Race-derived design from Flowmaster’s Top Ten muffler lineup, built for street/strip use
-
- Flowmaster 40 Series Delta Force race muffler with an aggressive sound level for competition builds
- Strategically placed internal ‘burn holes’ help prevent methanol puddling and deceleration backfire damage on alcohol-fueled race engines
- Developed through partnerships with sanctioning bodies including NASCAR, ARCA, and the W.O.O. sprint car series
- 3.50″ inlet with an offset (same-side) outlet for compact, packaging-friendly race layouts
- Durable high-temperature paint finish built to handle demanding track conditions
- Universal fitment for flexible integration into custom race exhaust setups
-
- Single-chamber Delta Flow design engineered for maximum race performance
- Delivers a noticeable dB reduction over open headers with an aggressive tone
- Universal fitment with a 3.50″ inlet and 9.50″ body for flexible custom builds
- Durable high-temperature paint finish stands up to demanding exhaust heat
- Purpose-built for street/strip racing applications without a set decibel limit
-
- Delta Flow technology delivers excellent power characteristics with good sound reduction
- Aggressive tone with substantial decibel reduction over open headers — ideal for racing applications
- 3.50-inch inlet diameter suits higher-flow exhaust systems
- Universal fitment makes it a flexible choice for custom builds and classic muscle cars
- Durable high-temperature paint finish stands up to demanding exhaust heat
-
- Gains of up to 4 hp and 11 lbs-ft of torque at the rear wheels over stock
- Durable 409 stainless steel construction with dual 2.50-inch mandrel-bent pipes for improved flow
- American Thunder 50 Series Big Block muffler delivers a moderate, aggressive sound without highway drone
- Dual 3.50-inch polished tips and dual rear or dual side exit for a custom look
- Bolts to all factory hanger locations with included hardware and instructions for an easy at-home install
- CARB (California) compliant and backed by Flowmaster’s Lifetime Limited Warranty
-
- American Thunder cat-back exhaust system purpose-built for 2024–2026 GM 1500 trucks with the 6.2L engine
- Active valve control from the dash — quiet in Normal mode, aggressive in Sport or Off-Road mode
- Delivers max dyno gains of 15 hp and 13 lb-ft at the rear wheels
- Durable 409 stainless steel with quad-exit 4.0-inch black ceramic tips
- Bolt-on install using all factory hanger locations — no cutting required
- Fits 2WD and 4WD Silverado and Sierra models and is CARB compliant
