Availability
On Sale
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.
( 356 )
$99.95
On Sale
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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$69.95
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$98.95
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.
( 364 )
$169.95
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$184.95
On Sale
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.
( 397 )
$134.95
On Sale
Flowmaster Stainless Steel Super 44 mufflers offer distinct advantages over original 40 Series mufflers, while using the same technology. The Stainless Steel Super 44 mufflers deliver a deep, rich tone with an improved flow path radius, optimum internal flow, and sound control engineering, all created with Flowmaster's Delta Flow technology. They are the most aggressive, deepest sounding, highest performing 4 in. case street mufflers that Flowmaster has ever built, exceeding OEM specifications for use on street cars, race cars, and sport trucks. They 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 these Stainless Steel Super 44 Flowmaster mufflers are for you.
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$136.95
$89.95
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$136.95
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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$165.95
$107.95
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$168.55
On Sale
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.
( 161 )
$340.95
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$799.95
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.
( 58 )
$132.95
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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$149.95
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$166.95
On Sale
Flowmaster Super 50 series muffler is a larger version of Flowmaster's famous 50 series mufflers, and designed for trucks and SUV's, it is also well suited to muscle car and high-performance applications. They are constructed of 16-gauge aluminized steel and fully MIG welded for maximum durability and feature a special tuning chamber that reduces interior resonance, while their larger case improves sound control and optimizes exhaust flow.
( 65 )
$199.95
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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$243.95
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$249.95
On Sale
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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$774.95
$503.95
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$999.95
On Sale
The proven race design of the Pro series mufflers from Flowmaster delivers performance equal to and surpassing open-pipe systems. From street trucks to diesel "pullers" to every class of dirt or asphalt racing, the performance of these Pro series mufflers is matched only by their ability to dramatically reduce sound levels across the rpm range. Flowmaster mufflers offer 409 stainless steel internal construction enclosed in a durable, fully welded, 18-gauge steel case. Master the flow of your diesel system like a pro with Flowmaster Pro series mufflers.
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$271.95
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$299.95
Flowmaster stainless steel 50 Series SUV performance mufflers are a larger version of Flowmaster's famous 50 series mufflers, and are designed specifically for trucks, SUVs, and large displacement car engines. They feature a special tuning chamber that reduces interior resonance, while their larger case improves sound control and optimizes exhaust flow. These mufflers are manufactured from fully welded 16 gauge stainless steel for the ultimate in durability.
( 31 )
$219.95
On Sale
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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$549.95
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$1,199.95
Producing an aggressive muscle car sound, the Flowmaster 80 Series crossflow mufflers are specially designed for applications where the muffler must be mounted transversely behind the rear axle. Whether you need to match an OEM exhaust system or are looking for increased ground clearance, these mufflers fit the bill. They are available in your choice of single inlet/dual outlet or dual inlet/dual outlet configurations--order yours today!
( 29 )
$176.95
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$184.95
Flowmaster 50 Series heavy-duty mufflers can deliver more horsepower and increase torque and fuel mileage. Specifically designed for gas and diesel applications, the 50 Series heavy-duty mufflers can significantly improve acceleration and towing power while also increasing fuel economy.
( 32 )
$319.95
On Sale
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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$899.95
$449.95
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$773.95
On Sale
Control your vehicle emissions with Flowmaster direct-fit catalytic converters. With designs available for hundreds of vehicles from the 1980s and up, these cats meet or exceed USEPA 49-state requirements. They feature stainless steel construction with compression-bent tubing and are ready to bolt-on. Select the replacement model and options recommended for your application.
( 106 )
$899.95
On Sale
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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$239.95
$155.95
On Sale
Flowmaster Force II cat-back exhaust systems have been designed using the latest technology available--providing improved acceleration, passing power, and fuel mileage. The key to these performance upgrades is the use of mandrel-bent tubing, which allows for superior exhaust gas flow. The Force II systems are built with aluminized steel to resist corrosion. Order the exhaust fitment for your particular make and model.
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$749.95
Flowmaster 60 Series Delta Flow performance mufflers are designed to bring Flowmaster performance to smaller cars and trucks with 4 and 6-cylinder engines. All 60 Series mufflers feature Delta Flow technology for increased torque and horsepower and reduced interior resonance. When fitted with a standard tailpipe, the 60 Series mufflers produce a mellow sound. Their larger diameter tailpipe will create a deeper tone both inside and outside of the vehicle.
( 10 )
$199.95
Flowmaster Outlaw Extreme exhaust systems provide maximum sound level and performance. These race-oriented systems feature 409S stainless steel construction—and their small, lightweight Outlaw mufflers. The mufflers generally produce more power than open headers, while taking "the edge" off the open-header sound, but still producing very aggressive tones, both inside and outside your vehicle. Flowmaster Outlaw Extreme exhaust systems are race-proven and the perfect choice at race tracks requiring mufflers, but without dB restrictions.
( 23 )
$671.95
Flowmaster turbo diesel downpipe kits have a larger-than-stock diameter to increase airflow by up to 25 percent. Get more torque and horsepower from these easy to install upgraded downpipes from Flowmaster..
Not Yet Reviewed
$189.95
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