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XDR Latest Products
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AIRAID Performance Air Intake System- 202-281
$449.99
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Corsa Performance Closed Box Air Intake 2021-2022 Ford F-150 3.5L Turbo
$575.30
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SCORCHER BLUE Bluetooth Capable Power Module RAM 1500 14-18 / 2019 1500 Classic V6-3.0L (td) EcoDiesel
$646.00
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12-17 Audi S5 (Coupe - 3.0 - AWD) Exhaust System Kit
$1,602.13
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Flowmaster American Thunder Crossmember-Back Exhaust System
$1,228.46
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Product
Price
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- Complete crossmember-back dual exhaust system with everything needed for an easy fit installation
- Mandrel-bent 2.50 in. tubing and Super 40 Series mufflers deliver maximum flow and an aggressive American Thunder tone
- Engineered to improve throttle response, power, and mileage on your classic Mopar
- CARB (California) compliant with Emission Code 5
- Fits Dodge and Plymouth 273, 318, 340, 360, 383, and 426 engines in 2WD applications
- Dual tail pipe layout with silver-finish pipe; add your choice of exhaust tips (sold separately)
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- Deep, aggressive exterior tone paired with a moderate interior tone that won’t overwhelm the cabin
- Heavy 16-gauge mandrel-bent aluminized steel tubing with an included Super 50 Series performance muffler
- Dual 2.50-inch tailpipes offer a choice of rear exit or side exit—side exit is ideal for towing
- Polished 3.00-inch 304 stainless steel tips embossed with the Flowmaster name
- CARB compliant and complete with all hardware and instructions for easy at-home installation
- Fits 2WD and 4WD models across all wheelbases, backed by a 3-year Limited Warranty
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- Delivers a moderately aggressive exterior tone with a moderate interior tone thanks to the Super 40 Series muffler
- Mandrel-bent 2.50-inch aluminized steel improves throttle response, power, and mileage
- Dual 2.50-inch tailpipes finished with polished 3.00-inch stainless steel tips for a muscular look
- Choose straight-out-the-back exits or behind-the-rear-wheel exits ideal for towing
- Uses factory hanger locations and includes all hardware for an easy install
- CARB compliant and backed by a Flowmaster 3-Year Limited Warranty
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- Super 50 Series muffler delivers a moderately aggressive exterior tone with a comfortable moderate interior sound — no annoying highway drone
- Improves throttle response, power, and mileage thanks to free-flowing dual 2.50-inch tubing
- Choose your tailpipe exit: straight out the back for a muscular look, or behind the rear wheels for towing
- Polished 3.00-inch stainless steel tips give a premium, finished appearance
- Bolts on using factory hanger locations with all parts and U-Bolt hardware included for easy installation
- CARB compliant and backed by Flowmaster’s 3-year Limited Warranty
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- Adds up to +8 hp and +15 lb-ft at the rear wheels on the 6.2L Camaro
- Flow FX straight-through mufflers deliver an aggressive-to-moderate tone
- Durable 409 stainless steel with 3.00-inch mandrel-bent pipes for better flow
- Bolt-on install using factory hangers, with all hardware and instructions included
- Dual-exit 4.50-inch black ceramic tips with embossed Flowmaster logo
- CARB compliant and backed by Flowmaster’s Lifetime Limited Warranty
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- Delivers a moderate-to-aggressive Flowmaster tone from a pair of Super 40 Series mufflers, great inside and outside the car
- Mandrel-bent 2.50-inch aluminized steel tubing with a built-in H-pipe crossover for balanced, free-flowing performance
- Complete crossmember-back kit with dual tailpipes, polished oval stainless steel tips, and all necessary installation hardware
- Designed as an easy bolt-on fit for 1965-1968 Chevy Impala and Caprice coupes, wagons, and convertibles
- CARB (California) compliant and backed by a 3-year Limited Warranty
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- Complete crossmember-back system with mandrel-bent 2.50-inch aluminized steel tubing and a built-in H-pipe crossover for smooth flow
- Includes a pair of Super 44 Series mufflers for a moderate-to-aggressive sound inside and out
- Choose dual rear exits under the bumper or dual side exits behind the rear tires to match your style
- Fits 1973-1974 Chevy and GMC C10/C15 2WD trucks in both long and short wheelbase with automatic or manual transmissions
- CARB compliant and backed by a 3-year Limited Warranty, with all installation hardware included
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- Complete crossmember-back system with built-in H-pipe crossover and a pair of Super 44 Series mufflers for that signature Flowmaster growl
- Choose from four dual tailpipe exit styles to match your truck’s look and stance
- Mandrel-bent 2.50-inch aluminized steel tubing delivers smooth flow and durable construction
- Direct fit for 1967-1972 Chevy/GMC C10 and C15 1/2 ton 2WD coil spring trucks, short or long wheelbase
- CARB compliant and includes all necessary installation hardware
- Provides adequate clearance for substantially lowered vehicles, backed by a 3-Year Limited Warranty
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- True dual, crossmember-back exhaust system with a built-in H-pipe for improved throttle response, power, and a deep muscle car sound
- 2.50-inch mandrel-bent aluminized steel tubing throughout for strong, consistent flow
- Includes a pair of Flowmaster Super 44 Series mufflers (PN 942546) delivering a moderate to aggressive tone inside and out
- Dual 2.50-inch tailpipes exit in the factory location behind the rear wheels for a clean, correct look
- CARB (California) compliant and ships complete with all parts, hardware, and instructions for an easy fit
- Stainless steel construction available via optional system #817129 for those who want an upgraded material
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- Complete true dual, Crossmember-back exhaust system that includes the Super 44 mufflers, hangers and hardware for a straightforward install
- 2.50-inch mandrel-bent aluminized steel tubing plus a built-in H-pipe delivers maximum flow and a balanced, aggressive tone
- Super 44 Series mufflers produce an aggressive to moderate interior and exterior sound for enthusiasts who want to be heard
- Dual 2.50-inch tailpipes finished with 2.50-inch angle-cut brushed stainless steel tips for a clean, muscular look
- Engineered to improve throttle response, power and mileage, and backed by a 3-year Limited Warranty
- CARB (California) compliant and purpose-built for 1969 Camaro and Firebird V8 applications
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- Dyno-proven maximum gains of +16 hp and +22 lb-ft at the rear wheels for real, measurable performance
- Durable 409 stainless steel construction with mandrel bent 3.00 to dual 2.50-inch pipes for improved flow and longevity
- Flow FX straight-through muffler delivers an aggressive-to-moderate exhaust tone
- Easy at-home install using all factory hanger locations, with hardware and instructions included
- Dual 4.00-inch black ceramic tips with laser logo add a bold, custom look
- CARB (California) compliant and backed by Flowmaster’s Lifetime Limited Warranty
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- Aggressive exterior sound with a moderate in-cab tone — performance you hear without droning inside the truck
- Complete stainless steel catback with mandrel-bent tubing, Super 40 Series muffler, and dual 2.50-inch tailpipes
- Choose dual rear exit under the bumper or dual side exit behind the rear tires to match your style
- Bolt-on install using factory hanger locations, with all necessary parts and hardware included
- CARB (California) compliant and emissions-legal for street-legal peace of mind
- Finished with large 3.50-inch polished stainless steel tips and backed by a Lifetime Limited Warranty
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- Complete true dual Crossmember-Back system with 2.50-inch mandrel-bent aluminized steel tubing for maximum flow
- Slimline 50 Series Delta Flow mufflers deliver a moderate to aggressive tone that’s heard inside and out
- Built-in H-pipe/balance tube helps improve throttle response, power, and mileage
- Dual 2.50-inch tailpipes finished with angle-cut brushed stainless steel tips for an aggressive look
- Includes all hangers, U-bolt hardware, and mufflers — designed for 1970-1974 Camaro and Firebird V8
- CARB (California) compliant and backed by a 3-year Limited Warranty
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- Adds a dyno-verified +8 hp and +11 lb-ft at the rear wheels on the 5.7L Hemi Ram 1500
- Flow FX straight-through muffler delivers an aggressive-to-moderate tone that’s bold on throttle without constant drone
- 409 stainless steel construction with 3.00-to-dual 2.50-inch mandrel-bent pipes for durability and better flow
- Bolt-on install using factory hanger locations, with instructions and all hardware included
- Dual side exit with 4.50-inch black ceramic embossed-logo tips for a custom look
- CARB compliant and backed by Flowmaster’s Lifetime Limited Warranty
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- Deep, powerful sound from the 80 Series Cross-flow muffler with a moderate-to-aggressive exterior tone and mild-moderate interior tone
- 3.00-inch mandrel-bent aluminized steel inlet and dual tailpipes finished with polished stainless steel tips for a muscular look
- Improves throttle response, power, and mileage as part of a complete Flowmaster cat-back system
- Bolts to factory hanger locations with U-Bolt clamps and includes all hardware for easy installation
- CARB (California) compliant and backed by Flowmaster’s 3-year Limited Warranty
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- Iconic deep, aggressive-to-moderate tone from a pair of Super 44™ Series mufflers
- Free-flowing 2.50-inch aluminized steel mandrel-bent inlet pipes and dual tailpipes for improved flow
- Bolts to factory hanger locations with included U-bolt hardware and instructions for easy installation
- Long 2.50-inch 304 stainless steel tips deliver a genuine show-car look
- Emissions legal and CARB (California) compliant for the 1998 Mustang GT and Cobra 4.6L
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- Complete 2.50-inch crossmember-back dual exhaust for most 1964-1972 GM A-body cars
- Includes a pair of Super 40 Series mufflers for a moderately aggressive exterior and moderate interior tone
- H-pipe and all mandrel-bent aluminized steel tubing for maximum flow, power, and throttle response
- Two tailpipe exit style choices with tailpipes tucked up for maximum clearance
- CARB compliant and backed by Flowmaster’s 3-year Limited Warranty
- Ships with all necessary parts, hardware, and U-bolt clamps for an easy install
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- Dyno-proven gains of +11 hp and +15 lb-ft of torque at the rear wheels
- Straight-through Flow FX muffler delivers an aggressive-to-moderate sound level
- 409 stainless steel construction with mandrel-bent 3.5-to-dual-3.0-inch pipes for durability and flow
- Dual side exit with 4.50-inch black ceramic tips and embossed logo for a custom look
- Easy at-home install using factory hangers, with all hardware and instructions included
- CARB compliant and backed by Flowmaster’s Lifetime Limited Warranty
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- Full 304 stainless steel construction for long-lasting corrosion resistance
- Dual-inlet Flow FX straight-through muffler with dual 2.50-inch mandrel-bent tailpipes for maximum flow
- Side-exit routing behind the rear wheels is ideal for towing
- Large 4.50-inch black ceramic coated stainless tips with embossed Flowmaster logo
- CARB compliant, emissions-legal bolt-on that uses factory hangers for easy at-home install
- Moderately aggressive exterior sound with a moderate interior tone, backed by a Lifetime Limited Warranty
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- Aggressive exterior tone with a moderate interior sound level for a bold yet livable ride
- Outlaw series stainless steel muffler with dual 2.50-inch mandrel-bent tailpipes for smooth flow
- Large 4.00-inch tips with embossed logo complete the aggressive look
- Bolt-on axle-back design uses factory hangers and includes all hardware for easy at-home install
- CARB compliant and emissions-legal, fitting 2012-2018 Jeep Wrangler JK 3.6L (2 and 4 door)
- Backed by Flowmaster’s Lifetime Limited Warranty
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- Complete crossmember-back dual exhaust engineered specifically for 1964–1972 El Camino/Sprint V8, 2WD applications
- 2.50-inch mandrel-bent aluminized steel with a built-in H-pipe for equalized pressures, no deceleration backrap, and maximum power
- Super 50 Series mufflers deliver a deep, aggressive exterior tone with minimal interior drone
- 3.00-inch angle-cut polished stainless tips exit behind the rear wheels for an aggressive muscle-car look
- CARB compliant and includes all necessary parts and hardware for an easy fit
- Improves throttle response, power, and mileage like all Flowmaster systems
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- Deep, powerful sound from large-case Super 40 Series mufflers with a moderate-to-aggressive exterior tone and mild-to-moderate interior tone
- Improved throttle response, power, and mileage thanks to smooth mandrel-bent aluminized steel tubing
- Muscular looks with dual 2.50-inch tailpipes and dual 3.00-inch polished stainless steel tips
- Easy bolt-on install using factory hanger locations, with all necessary parts and hardware included
- CARB (California) compliant and backed by Flowmaster’s 3-year Limited Warranty
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- Complete 2.50-inch dual exhaust custom designed for 1964-1966 Ford Mustang (non-GT, hardtop, 2WD)
- Pair of 40 Series Delta Flow mufflers delivers a deep, powerful sound with moderately aggressive exterior and moderate interior tone
- 16-gauge aluminized steel with all mandrel-bent tubing and an H-pipe for improved throttle response, power, and mileage
- Polished stainless steel tailpipe tips that tuck up for maximum clearance and a show-car look
- Includes all necessary parts, hardware, and instructions for an easy install, backed by a 3-Year Limited Warranty
- CARB (California) compliant with U-bolt clamping for a secure, straightforward fit
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- Adds max dyno gains of 13 hp and 16 lb-ft of torque at the rear wheels
- 3.00-inch mandrel-bent 409 stainless steel tubing for maximum flow and lasting durability
- Flow FX muffler delivers an aggressive-to-moderate exhaust tone
- Larger 4.50-inch black ceramic-coated tip with embossed logo for a custom look
- Bolt-on install using factory hangers with all hardware included
- CARB compliant and backed by Flowmaster’s Lifetime Limited Warranty
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