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Flowmaster American Thunder exhaust systems are designed with the latest exhaust technology available--resulting in improved acceleration, passing power, and fuel mileage. A key to these performance upgrades is Flowmaster's use of mandrel-bent tubing, which allows superior exhaust gas flow. The systems also feature mufflers (single or dual) that deliver plenty of the rich Flowmaster sound you expect. Components are built from stainless steel or aluminized steel; and some models include tips. American Thunder exhausts are available in more than a hundred configurations for fitment on specific truck and car applications.
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$1,417.95
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$1,729.95
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Looking for the most aggressive sound in the Flowmaster muffler line? Then take a look at their 40 Series mufflers. Designed for use on street and strip vehicles, they take the sound waves produced in the exhaust, and cancel them against angled baffles built into the muffler case. This improves both horsepower and fuel economy. Best of all, they allow you to hear that cool Flowmaster tone inside of the vehicle, as well as outside. So, if you want more power and less noise, then you've got to get Flowmaster 40 Series mufflers.
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Flowmaster FlowFX mufflers feature mandrel-bent bright stainless steel tubing, mated to specially designed straight-through for great sound and maximum performance. FlowFX 409 stainless steel mufflers deliver a moderate to aggressive interior and exterior sound level that will appeal to anyone looking for a deep, powerful exhaust note.
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$472.95
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Flowmaster universal catalytic converters are made from high-quality stainless steel and feature a slip-fit design for easy installation. Their universal design allows them to be used with virtually any exhaust system. Whether you're building a custom exhaust or just need a replacement, Flowmaster universal catalytic converters will enhance your vehicle's performance, while producing cleaner emissions. The units are available in a variety of size, position, inlet quantity, and AIR tube options.
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Flowmaster 50 Series Delta Flow mufflers are designed to produce a mellow, deep sound. They're milder on the outside of the vehicle than the 40 Series mufflers and are significantly quieter on the inside. These mufflers combine the increased horsepower and torque you've come to expect from Delta Flow technology with the performance sound and feel that makes Flowmaster famous.
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Flowmaster Super 44 Series mufflers use the same technology as the original Super 40 mufflers—but also offer some distinct advantages. The Super 44s deliver a deep, rich tone with an improved flow path radius, optimum internal flow, and sound control engineering, all created with Delta Flow technology. They're the most aggressive, deepest sounding, highest performing 4 in. case street mufflers that Flowmaster has ever built. These American-made, all-black mufflers exceed OEM specifications for use on street cars, race cars, and sport trucks. Super 44s are ideal when dynamic sound, torque, and horsepower improvements are demanded in a smaller high performance muffler. Their maximum performance and improved flow path will generate more torque and power than ever before! If you really want to hear your exhaust system inside as well as outside of your vehicle, then order the Flowmaster Super 44 muffler best suited to fit your application.
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These Super HP-2 mufflers from Flowmaster are designed for use with street rods, customs, and sport trucks. They feature stainless steel construction with an internal, layered-laminar jet engine gas flow design that uses guided sound control with broadband sound cancellation for a mellow '50s tone. These mufflers support up to 400 HP, while delivering outstanding looks, durability, and sound control.
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$247.95
Flowmaster Super 10 Series mufflers are intended for those who crave a loud, aggressive exhaust note. They are manufactured from 16-gauge, MIG-welded 409 stainless steel, and feature patented Delta Flow technology for optimum performance. These premium mufflers are offered in various sizes, finishes, and designs, with single or dual inlets and outlets, and are intended only for off-road or race applications.
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Flowmaster pipe kits are just like the Flowmaster exhaust systems except they don't include mufflers. This allows more flexibility in choosing the right sound for your vehicle while still providing the convenience of a pre-bent exhaust system.
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$496.95
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Flowmaster Stainless Steel American Thunder exhaust systems have been designed with the latest exhaust technology available. Through this technology, you will experience improvements in acceleration, passing power, and fuel mileage. The key to these performance improvements is Flowmaster's use of mandrel-bent tubing. Their tubing allows for superior exhaust gas flow, while their stainless steel construction allows for their corrosion-resistant qualities. These American Thunder exhaust systems also feature a stainless steel muffler(s) that'll give you plenty of Flowmaster sound.
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$1,499.95
Flowmaster U-Fit dual pipe kits come complete with all of the exhaust pipes that you need to build a custom dual exhaust system. U-Fit kits feature: * Front adapter pipes * Intermediate pipes * H-pipe assembly * Over-the-axle pipes * Slip fit connections * Mandrel-bent, 16-gauge tubing * Hardware and mufflers not included
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Flowmaster Delta Force cold air intakes are the elite kits you can call upon to help attain maximum performance and efficiency for your vehicle. All systems feature ultra-trick looking durable cross-linked polyethylene intake tubes with a large high-flow conical shaped air filter ensuring it will trap more dirt/dust particles than the typical filter. They are highlighted with Flowmaster logos to show others you're serious about quality and performance. Installation is easy utilizing factory mounting points. Take "operation cool airflow" to the next level with the addition of Delta Force cold air intake kits. Flowmaster Delta Force cold air intakes feature: * Roto-molded cross-linked polyethylene (XLPE) high-flow intake tube * Custom-designed black powdercoated air dam with foam rubber seal * Reusable/cleanable air filter * Multi-layer reinforced silicone couplers * Anodized aluminum fittings * Stainless steel hardware * No tuning required
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Flowmaster tailpipe kits finish off your exhaust with high-quality mandrel pre-bent pipes. Available in 16-gauge aluminized steel tubing or 16-gauge 409 stainless tubing, Flowmaster tailpipe kits are designed to fit perfectly onto your vehicle with all the quality and performance you expect. These mandrel-bent tubes eliminate kinks in the bend area for improved exhaust flow plus it allows you to route hot exhaust out from under your vehicle, keeping it cleaner and safer without a loss in performance. Add Flowmaster tailpipe exhaust technology to your ride.
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These 70 Series Big Block II mufflers are designed around a large case for maximum volume and efficiency. They're 2 in. narrower than the original Big Block muffler, making them easier to install into tight areas. Other features include a mild, mellow exhaust tone and a resonant tuning chamber for reduced interior sound levels.
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$232.95
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Flowmaster FlowFX exhaust systems are a "sound" choice for your vehicle. Delivering a moderately aggressive tone, they're built with bright 409S stainless steel tubing, and FlowFX straight-through mufflers with large cores for maximum performance and a deep sound. Many systems also include 304 stainless steel tips finished in a black ceramic coat or polished, and embossed with the Flowmaster logo. Flowmaster FlowFX exhaust systems are designed for ease-of-installation, and include all necessary parts, hardware, and detailed instructions. Choose the style, pipe size, muffler quantity and configuration for best fitment on your vehicle.
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$1,699.95
Looking for the most aggressive sound in the Flowmaster muffler line? Then take a look at Flowmaster stainless steel 40 Series mufflers. Designed for use on street and strip vehicles, they take the sound waves produced in the exhaust, and cancel them against angled baffles built into the muffler case. This improves both horsepower and fuel economy. Best of all, these mufflers allow you to hear that cool Flowmaster tone inside of the vehicle, as well as outside of it. So, if you want more power and less noise, then you need to acquire these Flowmaster stainless steel 40 Series mufflers.
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$123.95
Flowmaster Force II exhaust systems are engineered with the latest technology for improvements in acceleration, passing power, and fuel mileage. The key to these performance enhancements is the use of mandrel-bent tubing. Force II assemblies are available in dozens of muffler and pipe configurations for fitment on thousands of year/make/model cars and trucks. Choose the size and style that's compatible with your engine type.
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These Flowmaster Outlaw series race mufflers are specifically designed for racing. They feature a round case that allows for installation in limited-space applications. The mufflers' design incorporates sound attenuation rings without the need for packing materials.
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On Sale
These Super 40 Flowmaster mufflers significantly outflow the older two-chamber mufflers. They help create even more horsepower with less interior noise and a deeper exterior sound. These mufflers feature a design patterned after Flowmaster's race mufflers. These Flowmaster mufflers far exceed older models on Dyno tests. They create a beautiful hot rod sound, along with increased horsepower and gas mileage. So, if you want to get that hot rod sound and add some horsepower, then these Flowmaster mufflers have you covered.
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Flowmaster Outlaw Series exhaust systems are mandrel-bent for maximum performance and include specially designed mufflers. They deliver bold, dynamic interior and exterior tones for enthusiasts who covet the most aggressive components available. These systems include hardware and tips, where applicable--so installation is quick and easy. The kits are available in dozens of configurations for fitment on specific vehicles, including standard, crew, extended, and extended crew truck cabs; and long or short bed lengths. Order the Flowmaster Outlaw model designed for your application.
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Silence interior drone with Flowmaster dBX mufflers. These mufflers utilize cutting-edge technology to provide maximum performance and ultimate sound quality. dBX mufflers have a patented core design that delivers exhaust efficiency with much less noise inside of your ride. These Flowmaster mufflers feature 409S stainless steel internal components covered in a 304 stainless steel case--a great look for your next exhaust project! Keep the peace inside--add performance to your ride with dBX mufflers from Flowmaster.
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$227.95
On Sale
Flowmaster Super 40 Series Delta Flow mufflers go a step beyond their original 40 Series product. By precisely placing three internal baffles in the case, and welding them to exacting specifications, the 40 Series Delta Flow mufflers not only out-scavenge the originals, but they also provide superior reductions in exterior sound levels and resonance, which are transmitted through the exhaust system and into the vehicle. You get all this, plus improved torque and horsepower—and that famous Flowmaster sound!
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Flowmaster 50 series Big Block mufflers have proven to not only significantly improve acceleration and towing power, but to simultaneously increase fuel economy as well. Because of their efficiency, underhood temperatures on trucks and motor homes can be reduced as much as 200 degrees F--helping to lengthen the service life of other engine components. These mufflers are designed and sized for larger gas and diesel engines typically used in towing vehicles and RVs. So, for more comfortable cruising, Flowmaster tuned them for reduced exterior exhaust sound and lower levels of interior resonance.
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Flowmaster's aluminized steel turndowns have more than just great looks. They're designed to mount directly to Flowmaster's Scavenger race mufflers and are highly recommended for even greater sound reduction.
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$74.15
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$80.75
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