Breathe Performance
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Latest Products
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AEM-28-20857 DryFlow Air Filter
$62.99
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Flowmaster American Thunder Crossmember-Back Exhaust System - Super 44 Series, Aggressive / Moderate (817139)
$1,065.95
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Dinan D650-0011 Ignition Coil - N2 Series Style
$40.65 $45.73 -
CSF Radiators 2824 for Belts and Cooling Systems
$154.29
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Audi (2.0) Exhaust System Kit
$645.00 $678.95
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Product
Price
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Flowmaster American Thunder Cat-back Exhaust System – Super 50 Series, Aggressive / Moderate (17342)
- Deep, powerful exterior tone with a mild to moderate interior sound level for everyday livability
- Super 50 Series performance muffler and specially designed resonator keep the cabin comfortable while boosting flow
- Mandrel-bent 3.00-inch aluminized steel tubing improves throttle response, power, and mileage
- Dual 2.50-inch tailpipes finished with 3.00-inch polished stainless steel tips for a subtle custom look
- Uses factory hanger locations with U-bolt clamps and includes all parts and hardware for an easy fit
- CARB (California) compliant and backed by a 3-year Limited Warranty
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- Aggressive, deep exhaust tone from a pair of Super 44 Series mufflers for enthusiasts who want to be heard
- Mandrel-bent 2.50-inch stainless steel inlet and tailpipes deliver maximum flow and lasting durability
- Improved throttle response, power, and mileage in a complete cat-back package
- Uses factory exhaust hangers with all parts and hardware included for a quick, easy installation
- CARB (California) compliant and backed by a Lifetime Limited Warranty
- Clean straight-back exit with a turn down at the lower valance; exhaust tips sold separately for a custom finish
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- Comfortable 50% polyester / 50% cotton blend that’s soft, durable, and machine washable
- Iconic Flowmaster logo featured on both the front and the back for recognizable branding
- Classic crew neckline and short sleeves for easy, everyday wear
- Unisex XXL fit offers a roomy, versatile cut
- Clean black colorway that pairs with just about anything
- Represent one of America’s most trusted performance brands
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- Delivers a deep, mellow, moderate performance tone that sets it apart from chambered mufflers
- Straight-through 3.00-inch stainless steel perforated core promotes smooth flow and a refined exhaust note
- Fully MIG-welded 409 stainless steel construction with embossed Flow FX logo on both sides for lasting durability and looks
- Reversible internal flow design installs in either direction to suit your application and offsets
- Compact case size and universal Truck/SUV fitment make installation easier in tight spaces
- Show-quality performance muffler at an economical price point
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- Straight-through smooth core delivers a moderate, refined sound level inside and out
- Fully welded 409S stainless steel case for increased durability and heat resistance
- Compact 4.00-inch round body fits nearly any application, including late model muscle cars
- 2.50-inch inlet with universal fitment for flexible custom exhaust builds
- Economically priced Flow FX performance muffler from Flowmaster
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- Delta Flow® technology improves sound control while adding mileage and power gains
- 16 gauge aluminized steel construction, fully MIG welded for maximum durability
- Enlarged case with a mild sound level for a refined, controlled exhaust note
- 3.00 inch inlet diameter suited to big block and classic muscle car builds
- Versatile fit for trucks, SUVs, RVs, tow vehicles, and high performance street cars where space allows
- High-temperature paint finish built to withstand exhaust-duty heat
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- Delivers a deep, mellow tone at a mild-to-moderate sound level thanks to the included 50 Series Big Block™ muffler — refined inside and out
- CARB compliant and emissions-legal, so you can upgrade your exhaust while staying within state regulations
- Full mandrel-bent 409 and stainless steel construction with a polished 3.50-inch tip for smooth flow and a clean finished look
- Complete bolt-on kit with all necessary parts and hardware for quick, easy at-home installation
- Custom designed for 1996-1999 Chevy Tahoe / GMC Yukon 5.7L, 4-door 2WD and 4WD models
- Backed by Flowmaster’s Lifetime Limited Warranty for long-term peace of mind
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- Delivers a deep, traditional mellow tone with a moderate sound level that’s distinct from chambered muffler designs
- 3.00-inch straight-through stainless steel perforated core promotes strong exhaust flow
- Fully MIG-welded “bright” 409 stainless steel construction with embossed Flow FX logo for show-quality looks
- Reversible internal flow design installs in either direction to suit your offsets and application
- Compact case and 2.50-inch inlet make it easy to fit into universal and late model muscle car builds
- Show-quality performance muffler at an economical price point
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- Delivers a powerful exterior sound while keeping a moderate, livable interior tone
- Straight-through Flow FX mufflers with large 3.00-inch cores for maximum flow
- Durable bright 409S stainless steel construction for years of reliable service
- Dual 4.50-inch black ceramic coated tips embossed with the Flowmaster logo
- Uses factory hanger locations with included hardware and instructions for easy at-home install
- CARB (California) compliant, direct fit for 2016-2024 Camaro SS 6.2L coupes and convertibles
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- Direct-fit axle-back upgrade for 2005-2010 Mustang GT, Shelby GT, GT500 (incl. GT500KR), California Special and Bullitt with 4.6L/5.4L engines
- Straight-through Flow FX mufflers with 3.00-inch cores deliver deep, aggressive-yet-moderate tone and strong flow
- Durable 409S stainless steel construction with dual 3.00-inch mandrel-bent tubing
- Large 4.50-inch ceramic-coated stainless tips with embossed logo fill the factory valance cutouts
- Bolts to factory hanger locations with all hardware and instructions included for easy installation
- CARB compliant and backed by Flowmaster’s Lifetime Limited Warranty
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- Delta Flow® technology and an enlarged case deliver improved sound control plus mileage and power gains
- Mild sound level provides a smooth, refined exhaust note without harsh drone
- 16 gauge aluminized steel, fully MIG welded for maximum durability
- High-temperature paint finish adds protection against heat and the elements
- Universal fitment with a 3.00″ inlet — great for trucks, SUVs, RVs, tow vehicles and street cars where space allows
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- Economically priced Flowmaster Flow FX performance muffler that delivers real value
- Straight-through smooth core provides a moderate, refined tone inside and out
- Fully welded 409S stainless steel case for increased durability and corrosion resistance
- Compact 4.00 inch round body with 3.00 inch inlet fits just about any application
- Universal fitment makes it ideal for late model muscle car exhaust builds
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- Delivers the original, aggressive Flowmaster sound with a proven chambered design
- Built from durable 16 gauge aluminized steel and fully MIG welded for maximum durability
- Universal fitment with a 2.25″ inlet makes it a versatile choice for street rod and custom builds
- High-temperature paint finish helps it stand up to real-world driving
- Iconic 40 Series tone — one of the most recognizable performance mufflers on the street
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- Flowmaster Outlaw series muffler delivers an aggressive, high-volume race exhaust note with no set decibel limit
- 2.50-inch inlet with universal fitment adapts to a wide range of race exhaust systems
- Connect directly to header collectors or integrate into your existing exhaust system for maximum flexibility
- High-temperature paint finish is built to withstand the heat of hard race use
- Exhaust tips sold separately so you can finish the build with the style and diameter you want
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- Flowmaster Outlaw Series muffler built for race use with no set decibel limit
- Aggressive sound level that maximizes volume and free-flowing exhaust performance
- Universal fitment with a 2.50-inch inlet for header-collector or in-line installs
- Durable high-temperature paint finish withstands demanding exhaust heat
- Versatile foundation for a custom performance exhaust or cat back exhaust system
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- True-dual 3.00-inch mandrel-bent design with a built-in H-pipe crossover for balanced flow and maximum power
- Dual Super 40 Series performance mufflers deliver a deep, powerful, aggressive exhaust note
- Built from durable 409 stainless steel and backed by a Lifetime Limited Warranty
- Custom-bent tailpipes tuck up high and exit with a clean turn-down under the rear bumper
- Purpose-built for 1968-1972 GM A-Body V8s (2WD) and CARB compliant
- Comes complete with all necessary hardware and hangers for installation
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- Adds up to 17 hp and 18 lb-ft at the rear wheels on the dyno
- Deep, aggressive-to-moderate exhaust tone from the Flow FX muffler
- Durable 3.00-inch mandrel-bent 409 stainless steel tubing for maximum flow
- Dual 4.00-inch black ceramic-coated tips with embossed logo for a custom look
- Includes all hardware and new hangers with factory mounting locations for easy install
- CARB compliant and backed by Flowmaster’s Lifetime Limited Warranty
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- Purpose-built for 1964-1966 Ford Mustang V8 hardtop coupes (2WD) as a complete crossmember-back system
- Free-flowing 2.50-inch mandrel-bent stainless H-pipe and dual 40 Series Delta Flow mufflers for power and that iconic deep tone
- 2.50-inch 304 stainless steel tips and high-tucked tailpipes deliver a true show-car look
- Includes all necessary parts, hardware, and easy-to-follow instructions for a bolt-on install
- CARB (California) compliant and backed by Flowmaster’s Lifetime Limited Warranty
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- 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
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- Adds up to 12 hp and 13 lb-ft at the rear wheels for real, measurable performance gains
- Flow FX muffler delivers a deep exhaust tone at a moderate, daily-driver-friendly sound level
- 3.00-inch mandrel-bent 409 stainless steel tubing maximizes flow and long-term durability
- Dual 4.00-inch black ceramic-coated tips with embossed logo add a custom, aggressive look
- Bolt-on install using factory hangers and mounting locations with all hardware included
- CARB compliant and backed by Flowmaster’s Lifetime Limited Warranty
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- Dyno-proven gains of +11 hp and +13 lb-ft at the rear wheels on the 5.6L TITAN
- Durable 409 stainless steel construction throughout with 3.00 to dual 2.50-inch mandrel-bent piping
- Flow FX straight-through muffler delivers an aggressive-to-moderate performance tone
- Dual 4.00-inch black ceramic tips with laser-etched logo for a custom look
- Uses factory hanger locations with all hardware and instructions for easy at-home installation
- CARB compliant and backed by Flowmaster’s Lifetime Limited Warranty
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- 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
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- Adds max gains of 10 hp and 10 lb-ft of torque at the rear wheels over stock on the 6.0-liter engine
- Durable 409 stainless steel throughout with 3.50 to 3.00-inch mandrel bent pipes for better flow
- Aggressive yet moderate Flow FX tone with dual 4.00-inch stainless tips and embossed logo
- Bolt-on install that uses factory hanger locations and includes all hardware and instructions
- CARB (California) compliant and backed by Flowmaster’s Lifetime Limited Warranty
- Direct-fit for 2011-2019 GM 2500HD/3500HD extended or crew cab with 6.5-foot bed
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- Larger case size reduces interior resonance for a deep, rich tone with less cabin drone
- Mild sound level ideal for classic muscle cars and street-driven performance builds
- 16 gauge aluminized steel construction, fully MIG welded for maximum durability
- Delta Flow-based design supports mileage and power gains over restrictive stock mufflers
- Universal fit with a 2.50-inch inlet for flexible custom exhaust installations
- High-temperature paint finish stands up to heat and the elements under your vehicle
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