American Thunder

Showing 121–144 of 170 results

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SKU
Product
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  • Chevrolet, GMC (2.7) Exhaust System Kit
    SKU: 818167
    • Dyno-proven gains up to 13 hp and 15 lb-ft at the rear wheels
    • Durable 409 stainless steel with 3.00-inch to dual 2.50-inch mandrel-bent pipes for better flow
    • 50 Series Big Block muffler delivers an aggressive-to-moderate tone
    • Bolt-on install using factory hangers, with hardware and instructions included
    • Dual 3.5-inch polished stainless tips with rear or side exit options
    • CARB compliant and backed by Flowmaster’s Lifetime Limited Warranty
  • Flowmaster American Thunder Cat-back Exhaust System
    SKU: 817658
    • Deep, aggressive Hemi sound from a pair of Super 44 Series mufflers with a livable moderate-to-aggressive character
    • Dual 2.50-inch Scavenger Series X-Pipe and mandrel-bent tubing for maximum flow and a deep performance tone
    • Durable 409S stainless steel construction with 2.50-inch stainless tips that exit through the factory rear valance bezels
    • True bolt-on kit with flanged connections and all necessary parts and hardware included for an easy fit
    • CARB (California) compliant and covered by Flowmaster’s Lifetime Limited Warranty
    • Purpose-built for the 2015-2016 Charger R/T and 2015-2023 Chrysler 300 with the 5.7L Hemi
  • 21-26 Ford F-150 (3.5) Exhaust System Kit
    SKU: 818166
    • Direct-fit cat-back exhaust for the 2021-2026 Ford F-150 3.5L PowerBoost using all factory hanger locations
    • Mandrel-bent 409 stainless steel tubing improves exhaust gas flow for maximum performance
    • Specially tuned resonator and included muffler deliver a deep, moderate to mild sound
    • 5.00-inch black ceramic coated stainless steel tip adds aggressive style
    • Includes instructions and all hardware for an easy at-home installation
    • CARB (California) compliant and backed by Flowmaster’s Lifetime Limited Warranty
  • Flowmaster American Thunder Cat-back Exhaust System
    SKU: 817699
    • Aggressive Flowmaster tone heard inside and outside the cab, powered by a stainless steel 50 Series HD muffler
    • Mandrel-bent piping with 3.00″ inlet and dual 2.50″ stainless tailpipes to reduce restriction and maximize performance
    • Polished 3.50″ stainless steel tips with embossed logo for a clean, finished look
    • True bolt-on DOR/DOS dual-out design that includes the muffler and all installation hardware
    • Emissions-legal and CARB (California) compliant, backed by Flowmaster’s Lifetime Limited Warranty
    • Purpose-built fit for 2014-2018 Ram 2500 5.7L V8 Crew Cab Long/Standard Bed models
  • Flowmaster American Thunder Cat-back Exhaust System
    SKU: 817664
    • Delivers a deep, aggressive exterior tone with a mellow growl inside the cab
    • All stainless steel construction with a Super 40 Series muffler and 2.50-inch mandrel-bent dual tailpipes
    • Includes two sets of final pipes so you can run dual-out-the-back or dual-behind-the-rear-tires for towing
    • Finished with 3.50-inch double-wall polished stainless steel tips for a clean look
    • CARB compliant and emissions-legal with all hardware included for easy at-home bolt-on installation
    • Fits 2009-2021 Toyota Tundra 4.6L, 4.7L, and 5.7L trucks in 2WD and 4WD
  • Flowmaster American Thunder Crossmember-Back Exhaust System
    SKU: 817673
    • Aggressive, streetable tone from stainless steel Super 44 Series mufflers
    • Dual 2.50″ 409S stainless tailpipes with a welded H-Pipe for balanced flow and sound
    • Mandrel-bent pipes reduce restriction to maximize performance
    • Direct bolt-on fit for 1962-1967 Chevy II/Nova (2WD) with all parts and hardware included
    • CARB (California) compliant and backed by Flowmaster’s Lifetime Limited Warranty
  • Flowmaster American Thunder Cat-back Exhaust System
    SKU: 817680
    • Deep, moderately aggressive Super 40 Series sound tuned for enjoyable street and towing use
    • Configure the dual tailpipes for rear under-bumper exit or side exit behind the tires — ideal for towing a boat or RV
    • Mandrel-bent stainless steel tubing and tailpipes finished with 3.50-inch double wall polished stainless tips
    • Bolt-on, flanged design includes all necessary parts and hardware for an easy installation
    • Emissions-legal and CARB (California) compliant
    • Protected by Flowmaster’s Lifetime Limited Warranty
  • Flowmaster American Thunder Cat-back Exhaust System
    SKU: 817709
    • 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
  • Flowmaster American Thunder Cat-back Exhaust System
    SKU: 817819
    • Direct bolt-on fit for 2018-2026 Jeep Wrangler JL 2-door and 4-door with the 3.6L engine, using factory hangers
    • Aggressive exterior tone with a mild interior note thanks to the 80 Series crossflow muffler and dedicated reflection resonator
    • Full stainless construction with 2.50-inch mandrel bent inlet and dual tailpipes for smooth, unrestricted flow
    • Stealthy dual 4.00-inch black ceramic coated tips with embossed Flowmaster logo
    • CARB (California) compliant, emissions-legal system that includes the muffler and all necessary hardware for easy at-home installation
  • Flowmaster American Thunder Cat-back Exhaust System
    SKU: 817719
    • Delivers a moderately aggressive exterior sound with a moderate, comfortable interior tone
    • Full stainless steel construction with 2.50-inch mandrel-bent tubing and a Super 50 Series muffler for smooth, freer flow
    • Dual 3.50-inch polished stainless tips exit behind the rear tires — great for towing and a bold rear look
    • Uses factory hanger locations and includes all hardware and instructions for an easy at-home install
    • CARB (California) compliant and fits all 2016-2023 Tacoma Access/Double Cab 3.5L 2WD and 4WD wheelbases
  • Flowmaster American Thunder Cat-back Exhaust System
    SKU: 817725
    • Aggressive exterior sound with a moderate interior tone for comfortable daily driving
    • Durable 409S stainless steel construction with a Super 40 Series muffler included
    • 3.00-inch mandrel-bent inlet and dual 2.50-inch tailpipes finished with polished 3.50-inch stainless tips
    • Choose rear-exit under the bumper or side-exit behind the rear tires to suit towing needs
    • Bolt-on fit for 2015-2020 F-150 with 2.7L/3.3L/3.5L EcoBoost, 3.5L TiVCT and 5.0L engines, plus all hardware
    • CARB (California) compliant with included parts for an easy at-home installation
  • Flowmaster American Thunder Cat-back Exhaust System
    SKU: 817730
    • Aggressive exterior sound with a moderate interior tone for a Mustang GT that’s bold but livable
    • Exclusive dual 3.00-inch mandrel-bent Scavenger Series X-pipe maximizes power and creates a deep, unique tone
    • 60 Series performance mufflers with dual mandrel-bent tailpipes and large 4.00-inch polished stainless steel tips
    • CARB (California) compliant and emissions-legal for peace of mind
    • Uses factory hanger locations and includes all parts and hardware for an easy at-home installation
    • Built specifically for 2015-2017 Mustang GT 5.0L coupes (does not fit Convertibles)
  • Flowmaster American Thunder Cat-back Exhaust System
    SKU: 817739
    • Aggressive exterior sound with a moderate interior tone — the best of both worlds for daily driving and open-road fun
    • Durable 409S stainless steel with mandrel-bent dual 3.00-inch tubing and a Scavenger Series X-pipe for maximum power
    • Quad 3.50-inch polished 304 stainless tips with embossed logo exit within the rear bumper valence for a factory-integrated look
    • Dummy valve stands keep factory actuators happy for wide-open sound and performance without throwing a code
    • Bolt-on install using factory hanger locations, backed by Flowmaster’s Lifetime Limited Warranty
    • CARB (California) compliant fitment for 2015-2023 Challenger Hellcat/Demon, SRT392/Scat Pack, and 2017-2023 R/T
  • Flowmaster American Thunder Cat-back Exhaust System
    SKU: 817891
    • Aggressive exterior sound with a moderate interior tone thanks to the 50 Series HD muffler
    • Mandrel-bent 3.50-inch stainless inlet and dual 2.50-inch stainless tailpipes for high flow
    • Quad 4.00-inch black ceramic coated stainless tips exit through the factory bezel locations for standout style
    • Bolt-on design uses factory hangers with all parts, hardware, and instructions for easy at-home install
    • CARB compliant and emissions-legal for the 2019-2023 6.2L Silverado/Sierra 1500 with factory dual exhaust
  • 21-26 Ford F-150 (2.7, 3.5, 5.0) Exhaust System Kit
    SKU: 818169
    • Dyno-proven gains up to 18 hp and 14 lb-ft at the rear wheels
    • Aggressive-to-moderate Super 40 Series muffler tone that won’t drone
    • Durable 409 stainless steel, mandrel-bent tubing for better flow
    • Bolts to factory hanger locations with included hardware and instructions for easy at-home install
    • Dual 4.5-inch black ceramic coated tips with embossed logo for added style
    • CARB compliant and backed by Flowmaster’s Lifetime Limited Warranty
  • Flowmaster American Thunder Axle-back Exhaust System
    SKU: 817744
    • Aggressive exterior sound with a moderate interior tone thanks to dual Super 44 Series mufflers
    • Bolt-on install using factory hanger locations — includes all parts, hardware, and instructions
    • 3.00-inch stainless mandrel-bent tubing finished with large 4.00-inch polished 304 stainless tips
    • CARB compliant and emissions-legal for 2016-2024 Camaro SS 6.2L coupes and convertibles
    • Delivers improved throttle response, power, and mileage
    • Covered by the Flowmaster Lifetime Limited Warranty
  • Flowmaster American Thunder Cat-back Exhaust System
    SKU: 817741
    • Aggressive exterior sound with a moderate interior sound level for daily comfort
    • 409S stainless steel with dual 2.50-inch mandrel-bent tubing and Scavenger X-pipe for maximum flow and a deep tone
    • Includes Super 44 performance mufflers and specially-tuned chambered resonators to minimize interior drone
    • True bolt-on install with all necessary parts, hardware and easy-to-follow instructions
    • CARB (California) compliant and fits 2015-2023 Charger SE/SXT and 2015-2020 Chrysler 300S 3.6L models
    • Dual 2.50-inch stainless tips exit within the factory rear bumper valence for a clean look
  • 24-26 Toyota Tacoma (2.4) Exhaust System Kit
    SKU: 818176
    • Dyno-proven max gains of 14 hp and 21 lb-ft at the rear wheels on the 2.4L Tacoma
    • Durable 409 stainless steel with 3-inch and 2.5-inch mandrel-bent pipes for improved flow
    • 50 Series HD muffler delivers an aggressive yet moderate tone with reduced drone
    • Choose dual rear-exit or side-exit, both with 4-inch polished stainless tips
    • Bolts on with factory-style hangers plus included hardware and instructions for easy at-home install
    • CARB compliant and backed by Flowmaster’s Lifetime Limited Warranty
  • Flowmaster American Thunder Axle-back Exhaust System
    SKU: 817751
    • Aggressive-to-moderate exhaust tone from race-proven Outlaw® Series mufflers, at home on the street and the strip
    • Dual mandrel-bent 2.50-inch tailpipes deliver smooth, unrestricted flow for maximum performance
    • Durable 409S stainless steel construction with polished 4.00-inch stainless tips and an embossed Flowmaster logo
    • True bolt-on install using factory hangers — includes all parts, hardware, and instructions for an easy at-home job
    • CARB compliant and emissions-legal, so you get the sound and performance without compliance worries
    • Backed by Flowmaster’s Lifetime Limited Warranty for lasting peace of mind
  • Flowmaster American Thunder Axle-back Exhaust System
    SKU: 817749
    • Aggressive yet balanced sound from Super 44 Series mufflers — deep and powerful outside, comfortable inside
    • Fits 2015-2017 Ford Mustang GT 5.0L, both coupes and convertibles
    • Durable 409 stainless steel construction with large 4.00-inch polished stainless tips and embossed logo
    • Bolt-on axle-back design includes all parts and hardware for an easy fit
    • CARB compliant and emissions-legal, backed by the Flowmaster Lifetime Limited Warranty
  • Flowmaster American Thunder Cat-back Exhaust System
    SKU: 817758
    • Aggressive exterior tone paired with a moderate interior volume for everyday drivability
    • Dual 3.00-inch Scavenger Series X-pipe and Super 40 Series mufflers deliver a deep, powerful sound and maximum power
    • Durable 409S stainless steel construction with polished 4.00-inch Flowmaster-embossed tips
    • Easy bolt-on install using factory hangers, includes all parts and hardware, and reuses the OEM MDS valve actuator
    • CARB (California) compliant and backed by Flowmaster’s Lifetime Limited Warranty
  • Flowmaster American Thunder Cat-back Exhaust System
    SKU: 817778
    • Direct-fit bolt-on cat-back for 2017-2023 Dodge Charger R/T and Daytona 5.7L Hemi
    • Dual 3.00-inch mandrel-bent Scavenger Series X-Pipe and Super 40 mufflers with 3.50-inch internals for maximum power and aggressive tone
    • Durable 409S stainless steel construction built to last
    • Re-uses factory exhaust valves and exits through factory tips for a clean OEM look
    • CARB (California) compliant with all parts, hardware, and instructions included
    • Aggressive exterior sound with a moderate, pleasant interior tone at cruise
  • Flowmaster American Thunder Axle-back Exhaust System
    SKU: 817743
    • Aggressive exterior tone with a moderate interior sound level—louder presence without excessive cabin drone
    • CARB (California) compliant and emissions-legal for confident street use
    • Bolt-on install using factory hanger locations, with all hardware and instructions included
    • Mandrel-bent stainless steel tubing and specially tuned resonator/mufflers for smooth flow and a deep tone
    • Finished with large 4.00-inch polished stainless steel tips and an embossed logo
    • Backed by Flowmaster’s Lifetime Limited Warranty
  • Flowmaster American Thunder Axle-back Exhaust System
    SKU: 817748
    • Delivers a moderately aggressive exterior tone while keeping the cabin sound mild — ideal for daily-driven Mustangs
    • Dual Super 10 Series mufflers with 3.00-inch mandrel-bent inlet pipes for maximum flow and performance
    • Durable 409S stainless steel construction finished with polished 4.00-inch stainless tips with embossed logo
    • CARB-compliant and emissions-legal, so you can upgrade with confidence
    • True bolt-on install with all necessary parts and hardware included, backed by Flowmaster’s Lifetime Limited Warranty
    • Fits 2015-2023 Ford Mustang 2.3L EcoBoost and 3.7L engines in 2WD

Showing 121–144 of 170 results