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25+ Years of Race Winning Technology….and counting!

Our original Flowmaster technology was born on the racetrack over 25 years ago to create a sound solution for Sprint cars racing at local California fairgrounds events. Our patented new and innovative technology not only resolved the excessive sound issues of these high-powered race cars, but also allowed maximum horsepower with an increased and broader torque curve - an unheard of byproduct from competitive mufflers in use at the time.
 
Our highly devoted R&D works department actively searchs for new challenges to resolve, and constantly working with leading race teams, engine builders and race organizations to name a few, in the quest in improving and developing new technologies. Were focused on developing greener more positive solutions to keep racing safe for all participants, fans and neighbors, while achieving the ultimate goal...Winning!
 
No other muffler company has dominated racetracks around the world like Flowmaster has in the past, present, or will in the future. That’s our pledge to you. We feel we can make that statement since we earn it everyday with our non-stop drive to offer the best products available.
 
30 Series Delta Force Race - Three Chamber
FOR USE ON RACE VEHICLES - NOT INTENDED FOR STREET USE
The 30 Series Race Mufflers are our most powerful & quietest professional race mufflers available and incorporate over 25 yrs of race proven research & development ensuring you get the best race silencers money can buy no matter what type of racing you do. They are available in 5.00” & 6.00” thick case sizes for maximum power and sound attenuation, and are available in numerous inlet & outlet tubing sizes ranging from 3.50”, 4.00”, 4.50” and 5.00” applications.
 
60 Series Delta Force Race - Three Chamber
FOR USE ON RACE VEHICLE - NOT INTENDED FOR STREET USE
The 60 Series are some of the quietest mufflers we build. They are available in select sizes and were developed for spec classes & sportsman type race vehicles needing max dB attenuation. Select sizes are available with 3.00” and 3.50” inlets and outlets. These mufflers are recommended for race vehicles applications that have strict decibel level requirements to adhere to. Please call the Flowmaster tech-line with your specific dB requirements
 
50 Series Delta Force Race- Three Chamber
FOR USE ON RACE VEHICLES - NOT INTENDED FOR STREET USE
The 50 Series are some of the quietest mufflers we build. They are available in select sizes and were developed for spec classes & sportsman type race vehicles needing max dB attenuation. Select sizes are available with 2.50” and 3.00” inlets and outlets.  Constructed of 16 gauge aluminized steel and fully mig-welded for maximum durability. Please call the Flowmaster tech-line with your specific dB requirements and applications.
 
Hushpower Race Mufflers
The Hushpower line of mufflers have applications in all forms of racing such as sprints & midgets, vintage racing, and diesel sled pullers. A key feature is its Cool Shell technology which minimizes the outside case temperature for mounting in and around body panels. Consistently proven to meet the strictest dB sound limits without affecting performance, they are available in several case configurations with inlet/outlet sizes from 2.00” through 5.00”.
 
40 Series Delta Force Race - Two Chamber
FOR USE ON RACE VEHICLES - NOT INTENDED FOR STREET USE
The 40 Series Race Mufflers offer maximum performance with a substantial dB reduction over open headers. These are available in 3.00”, 4.00”, 5.00” & 6.00” thick case sizes. And with inlets & outlets ranging from 2.50” up to 5.00” sizes. The 40 series are available in numerous offsets for easy fitment & fabrication.
 Recommended for all racing applications where mufflers are required with a substantial decibel reduction over open headers. Please call the Flowmaster tech-line for assistance with specific dB requirements and applications.
 
Scavenger Series Collector Mufflers
FOR USE ON RACE VEHICLES - NOT INTENDED FOR STREET USE

Direct to header applications: The Scavenger Series Race Mufflers feature Flowmaster’s patented Delta Flow™ technology. Designed to attach directly to the exhaust header primary tubes, replacing the collector on sprint and drag racing applications. It can be used to retrofit existing race headers or used as the collector for custom fabricated race headers. It is ideal for limited space applications or race cars requiring mufflers with sound reduction. 

Note: Due to varying conditions these mufflers may or may not meet all sound level requirements
 
10 Series Delta Force Race - Single Chamber
FOR USE ON RACE VEHICLES - NOT INTENDED FOR STREET USE
The 10 Series Race Mufflers are a compact lightweight single chamber design that will net a noticeable sound reduction vs open headers without sacrificing valuable and hard earned horsepower. They are available in three compact case sizes, ranging from 3.00”, 4.00” & 5.00” inches tall, with inlet and outlet sizes ranging from 2.50” up to 4.00”, and in two inlet and outlet configurations. Race proven technology and performance for your race car. 
 
Outlaw Series
FOR USE ON ANY RACE VEHICLE - NOT INTENDED FOR STREET USE
The Flowmaster Outlaw Series Race Mufflers are our smallest and lightest race mufflers to date. When attached directly to the collector, it generally produces more power than open headers, while taking the “edge” off that open header sound. These race mufflers are designed to be used at race tracks requiring mufflers, but without dB restrictions. Available in two compact lengths and tubing diameter sizes including 3.00”, 3.50”, 4.00” and 5.00”. Recommended for racing applications where a race muffler is required, but without a set decibel limit to be met. Please call the Flowmaster tech-line with your specific dB requirements and applications.
 
Specialty Race Products
FOR USE ON RACE VEHICLES - NOT INTENDED FOR STREET USE
Through years of racing and partnerships with the leading race sanctioning bodies, Flowmaster has developed these specialty mufflers that have been specifically engineered for some of the leading race vehicles in organizations such as NASCAR, ARCA, and the W.o.O. sprint car series. These include race mufflers are for low ground clearance, special race fuels, packaging restraints etc.
 
Scavenger Series Header Collectors

Flowmaster’s unique, patented Scavenger Series Collector  is founded on the principle of  PULSE TECHNOLOGY. The large “D-shaped” ports in the the Scavenger Series Collectors create a larger surface area to help pull the exhaust pulses from the the opposing connected cylinders This creates a cleaner burn for the incoming fuel and air resulting in an increased and broader torque curve putting more power in the rpm range were you need it most. After  all, its torque that moves your vehicle.

 
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