Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Shop Open Wheel Headers & Exhaust At Speedway Motors

Speedway Motors stocks all the best low-restriction open wheel racing headers for Sprint and Midget chassis! We also have a great selection of header kits, collectors and tubing so you can repair your damaged headers or fabricate a custom set for your open wheel racing application.

"Open Wheel, Mufflers" Page 1 of 2

  • Speedway Auger Style Muffler
    $14.99
    Product Rating: 4.79 Stars
    Speedway Auger Style Muffler
    x
                Auger style muffler fits 3" or 3-1/2" diameter pipe.  11" long. Baffle style. Slips inside.       
            
  • Speedway Shorty Race Mufflers, 8 x 3 Inch
    Speedway Shorty Race Mufflers, 8 x 3 Inch
    x
                These shorty race mufflers are useful when the rules say you must run a muffler, but do not specify a noise level. All steel construction with no fillers to burn out.
            
  • Speedway Shorty Race Mufflers, 8 x 3-1/2 Inch
    Speedway Shorty Race Mufflers, 8 x 3-1/2 Inch
    x
                These shorty race mufflers are useful when the rules say you must run a muffler, but do not specify a noise level. All steel construction with no fillers to burn out.
            
  • Schoenfeld Headers 112535 Short Muffler
    Schoenfeld Headers 112535 Short Muffler
    x
                Schoenfeld 112535 short muffler.  Sanction body approved by World of Outlaws, ASCS, SUPRA, UTDRA, Knoxville and All-Stars. 

    3-1/2" inlet, 3-1/2" outlet, 11" long.

  • Dynatech   772-32520 Vortex Insert Cone, 3 Inch
    Dynatech 772-32520 Vortex Insert Cone, 3 Inch
    x
                

    Let's face it, open exhaust is a thing of the past! Sound requirements, mandatory mufflers, or maximum db level are found in all forms of racing today. From Mini-Stock to Outlaw Sprint Cars, reducing the sound level is becoming the norm. Today's racers are spending thousands of dollars to go racing. The last thing they want to do is get put on the trailer for too much noise. The Vortex Insert Cone can help you keep on track. That's sound insurance!

    • 100% T-304 stainless steel construction
    • Compact size fits all racing applications
    • Ultra lightweight - less that 1/2 lb. each
    • Little or no power loss
    • Easy bolt-in installation
    • Typically good for a 1-3 reduction in db 

    Typically good for a 1-3 dB reduction.

    How It Works (JPEG)

  • Schoenfeld Headers 103535K Shorty Muffler
    Schoenfeld Headers 103535K Shorty Muffler
    x
                This shorty muffler is for use where rules say you must run a muffler, but do not specify a noise level. Has a 4" O.D. body.
            
  • Dynatech   772-32540 Vortex Insert Cones, 4-1/2 Inch
    Dynatech 772-32540 Vortex Insert Cones, 4-1/2 Inch
    x
                

    Let's face it, open exhaust is a thing of the past! Sound requirements, mandatory mufflers, or maximum db level are found in all forms of racing today. From Mini-Stock to Outlaw Sprint Cars, reducing the sound level is becoming the norm. Today's racers are spending thousands of dollars to go racing. The last thing they want to do is get put on the trailer for too much noise. The Vortex Insert Cone can help you keep on track. That's sound insurance! 

    Typically good for a 1-3 dB reduction.

    • 100% T-304 stainless steel construction
    • Compact size fits all racing applications
    • Ultra lightweight - less that 1/2 lb. each
    • Little or no power loss
    • Easy bolt-in installation
    • Typically good for a 1-3 reduction in db 

    How It Works (JPEG)

  • Flowmaster 13516101 Hushpower 3 1/2 Inch Race Muffler
    Flowmaster 13516101 Hushpower 3 1/2 Inch Race Muffler
    x
                

    An increasing number of tracks and sanctioning bodies, including USAC and CRA, require mufflers for certain race classes. Hushpower has designed these Race Mufflers to deliver performance that equals or surpasses open headers.

    They're also lighter than most race mufflers and feature round 6" x 16" aluminized steel cases with stainless steel internals with 3.5" turndown outlets.

  • Viper Pipes VPR-14 14 Inch Muffler
    Viper Pipes VPR-14 14 Inch Muffler
    x
                
    • 14" Muffler, 2" slip fit
    • Perforated core that transitions from 2" to 2-1/2" at the outlet
    • Specially shaped end caps
    • Designed to meet most tracks DB requirement rules
    • Can be installed on Bailey, ERC, FOZ, Henchcraft, Stewart, Doemelt, Revolution, Shark, Eagle, PMP, Stealth, Spike, Bishop, Hawk, Factor 1, Hyper, Stallard, Concept, Triple X and others chassis
    • Constructed of mild steel
    • Includes a perforated core and steel packing
    • Core is incased in 4" diameter 16 gauge aluminum, held on with stainless steel rivets
    • Includes stainless steel barrel clamp
  • Flowmaster 15020100 Hushpower Pro Series Race Muffler-5 Inch In/Outlet
    Flowmaster 15020100 Hushpower Pro Series Race Muffler-5 Inch In/Outlet
    x
                

    An increasing number of tracks and sanctioning bodies require mufflers for certain race classes. Hushpower has designed these Race Mufflers to deliver performance that equals or surpasses open headers. They're also lighter than most race mufflers and feature round aluminized steel cases with stainless steel internals.

  • Flowmaster 14020100 Hushpower Pro Series Race Muffler-4 Inch In/Outlet
    Flowmaster 14020100 Hushpower Pro Series Race Muffler-4 Inch In/Outlet
    x
                

    An increasing number of tracks and sanctioning bodies require mufflers for certain race classes. Hushpower has designed these Race Mufflers to deliver performance that equals or surpasses open headers. They're also lighter than most race mufflers and feature round aluminized steel cases with stainless steel internals.

  • Dynatech   776-14252 Oval Split Flow Mufflers, 2-1/2 Inch
    Dynatech 776-14252 Oval Split Flow Mufflers, 2-1/2 Inch
    x
                

    The Split-Flow racing muffler is the "hot topic" among racers, and for good reason. The exclusive dual pattern core reduces dB level while maintaining a powerful sound. The all-aluminized, full welded construction makes it a top choice for racing and high performance applications. 

    • Straight-thru design for maximum flow
    • Stainless steel sound absorbing material for no burnout
    • Lightweight design (only 7.2 lbs)
    • Meets or exceeds db requirements at most muffler-required sanctioned events
    • Typical 8-10 dB reduction
    • Case Length:  14"
    • Case Width:  7"
    • Case Thickness:  4.5"
  • Flowmaster 13516100 Hushpower Pro Series Race Muffler, .5 In In/Outlet
    Flowmaster 13516100 Hushpower Pro Series Race Muffler, .5 In In/Outlet
    x
                

    An increasing number of tracks and sanctioning bodies require mufflers for certain race classes. Hushpower has designed these Race Mufflers to deliver performance that equals or surpasses open headers. They're also lighter than most race mufflers and feature round aluminized steel cases with stainless steel internals.

  • Dynatech   772-32510 Vortex Insert Cone, 3-1/2 Inch
    Dynatech 772-32510 Vortex Insert Cone, 3-1/2 Inch
    x
                

    Let's face it, open exhaust is a thing of the past! Sound requirements, mandatory mufflers, or maximum db level are found in all forms of racing today. From Mini-Stock to Outlaw Sprint Cars, reducing the sound level is becoming the norm. Today's racers are spending thousands of dollars to go racing. The last thing they want to do is get put on the trailer for too much noise. The Vortex Insert Cone can help you keep on track. That's sound insurance!

    • 100% T-304 stainless steel construction
    • Compact size fits all racing applications
    • Ultra lightweight - less that 1/2 lb. each
    • Little or no power loss
    • Easy bolt-in installation
    • Typically good for a 1-3 reduction in db 

    Typically good for a 1-3 dB reduction.

    How It Works (JPEG)

  • Flowmaster 53545-10 40 Series Delta Force Alcohol Sprint Car Muffler
    Flowmaster 53545-10 40 Series Delta Force Alcohol Sprint Car Muffler
    x
                If you are required to run mufflers on your sprint car, Flowmaster is the choice.  Standard style muffler.  All pipe measurements are I.D.
            
  • Dynatech   776-14352 Oval Split Flow Mufflers, 3-1/2 Inch
    Dynatech 776-14352 Oval Split Flow Mufflers, 3-1/2 Inch
    x
                

    The Split-Flow racing muffler is the "hot topic" among racers, and for good reason. The exclusive dual pattern core reduces dB level while maintaining a powerful sound. The all-aluminized, full welded construction makes it a top choice for racing and high performance applications. 

    • Straight-thru design for maximum flow
    • Stainless steel sound absorbing material for no burnout
    • Lightweight design (only 7.2 lbs)
    • Meets or exceeds db requirements at most muffler-required sanctioned events
    • Typical 8-10 dB reduction
    • Case Length:  14"
    • Case Width:  7"
    • Case Thickness:  4.5"
  • Dynatech   776-14302 Oval Split Flow Mufflers, 3 Inch
    Dynatech 776-14302 Oval Split Flow Mufflers, 3 Inch
    x
                

    The Split-Flow racing muffler is the "hot topic" among racers, and for good reason. The exclusive dual pattern core reduces dB level while maintaining a powerful sound. The all-aluminized, full welded construction makes it a top choice for racing and high performance applications. 

    • Straight-thru design for maximum flow
    • Stainless steel sound absorbing material for no burnout
    • Lightweight design (only 7.2 lbs)
    • Meets or exceeds db requirements at most muffler-required sanctioned events
    • Typical 8-10 dB reduction
    • Case Length:  14"
    • Case Width:  7"
    • Case Thickness:  4.5"
  • Dynatech   772-32530 Vortex Insert Cones, 4 Inch
    Dynatech 772-32530 Vortex Insert Cones, 4 Inch
    x
                

    Let's face it, open exhaust is a thing of the past! Sound requirements, mandatory mufflers, or maximum db level are found in all forms of racing today. From Mini-Stock to Outlaw Sprint Cars, reducing the sound level is becoming the norm. Today's racers are spending thousands of dollars to go racing. The last thing they want to do is get put on the trailer for too much noise. The Vortex Insert Cone can help you keep on track. That's sound insurance!

    • 100% T-304 stainless steel construction
    • Compact size fits all racing applications
    • Ultra lightweight - less that 1/2 lb. each
    • Little or no power loss
    • Easy bolt-in installation
    • Typically good for a 1-3 reduction in db 

    Typically good for a 1-3 dB reduction.

    How It Works (JPEG)

  • Dynatech   776-06352 Split Flow Race Muffler, 3-1/2 Inch Inlet/Outlet
    Dynatech 776-06352 Split Flow Race Muffler, 3-1/2 Inch Inlet/Outlet
    x
                

    The Split-Flow racing muffler is the "hot topic" among racers, and for good reason. The exclusive dual pattern core reduces dB level while maintaining a powerful sound. The all-aluminized, full welded construction makes it a top choice for racing and high performance applications. 

    • Straight-thru design for maximum flow
    • Stainless steel sound absorbing material for no burnout
    • Lightweight design (only 3.8 lbs)
    • Meets or exceeds db requirements at most muffler-required sanctioned events
    • Typical 6-8 dB reduction
  • Muffler Collector Insert, 3 Inch
    Muffler Collector Insert, 3 Inch
    x
                With its straight-through design, this muffler insert reduces noise without excess back pressure. Lightweight construction with nothing to burn out ensures durability.
            
  • Dynatech   776-14402 Oval Split Flow Muffler, 4 Inch
    Dynatech 776-14402 Oval Split Flow Muffler, 4 Inch
    x
                

    The Split-Flow racing muffler is the "hot topic" among racers, and for good reason. The exclusive dual pattern core reduces dB level while maintaining a powerful sound. The all-aluminized, full welded construction makes it a top choice for racing and high performance applications. 

    • Straight-thru design for maximum flow
    • Stainless steel sound absorbing material for no burnout
    • Lightweight design (only 7.2 lbs)
    • Meets or exceeds db requirements at most muffler-required sanctioned events
    • Typical 8-10 dB reduction
    • Case Length:  14"
    • Case Width:  7"
    • Case Thickness:  4.5"
  • Schoenfeld Headers MS131722 Mini/Micro Exhaust Muffler
    Schoenfeld Headers MS131722 Mini/Micro Exhaust Muffler
    x
                

    Schoenfeld introduces a performance exhaust muffler designed to work with Schoenfeld Micro Step Header.

    • Length-13" 
    • Inlet Diameter- 1-3/4"
    • Outlet Diameter- 2-1/4"
    • Body Diameter- 3-1/2"
  • Lobak Racing Muffler, 3 1/2 Inch x 18 Inch
    Lobak Racing Muffler, 3 1/2 Inch x 18 Inch
    x
                This Lobak racing muffler is super lightweight, weighing only 6 pounds. 20% of the exhaust flows straight through while the other 80% forms a spiral shape and flows smoothly out of the muffler.

    Great for sprints, stocks, supers, and midgets. NOTE: Not for street use. Features 3-1/2" inlet and outlet. 18" overall length.

  • Muffler Collector Insert, 3-1/2 Inch
    Muffler Collector Insert, 3-1/2 Inch
    x
                With its straight-through design, this muffler insert reduces noise without excess back pressure. Lightweight construction with nothing to burn out ensures durability.
            
  • Speedway Shorty Race Mufflers, 6 x 3-1/2 Inch
    Speedway Shorty Race Mufflers, 6 x 3-1/2 Inch
    x
                These shorty race mufflers are useful when the rules say you must run a muffler, but do not specify a noise level. All steel construction with no fillers to burn out.
            
  • Dynatech   776-06302 Split Flow Race Muffler, 3 Inch Inlet/Outlet
    Dynatech 776-06302 Split Flow Race Muffler, 3 Inch Inlet/Outlet
    x
                

    The Split-Flow racing muffler is the "hot topic" among racers, and for good reason. The exclusive dual pattern core reduces dB level while maintaining a powerful sound. The all-aluminized, full welded construction makes it a top choice for racing and high performance applications. 

    • Straight-thru design for maximum flow
    • Stainless steel sound absorbing material for no burnout
    • Lightweight design (only 3.8 lbs)
    • Meets or exceeds db requirements at most muffler-required sanctioned events
    • Typical 6-8 dB reduction
    • Case Length:  6"
    • Case Diameter:  5"

    Works with:

    • "X" Pipe - (part number 31178031203)
    • Turn Down - (part number 31178000100)
  • Dynatech   Auger Style Muffler, 11 x 3 Inch
    Dynatech Auger Style Muffler, 11 x 3 Inch
    x
                
    • Fits inside 3" O.D. pipe
    • Measures 11" long
    • 6-7 dB reduction
  • Viper Pipes VPR-10 10 Inch Stubby Muffler
    Viper Pipes VPR-10 10 Inch Stubby Muffler
    x
                
    • 10" "stubby" muffler
    • 1-3/4" slip fit
    • Perforated core transitions from 1-3/4" to 2-1/2" at the outlet
    • Uniquely shaped end caps
    • Designed to meet most tracks decibel rules
    • Constructed of mild steel
    • Perforated core and steel packing
    • Core is encased in 4" diameter 16 gauge aluminum core that is held with high quality stainless steel rivets
    • Muffler comes with a stainless steel barrel clamp that is specially designed to get the job done
    • Works on Bailey, ERC, FOZ, Henchcraft, Stewart, Doemelt, Revolution, Shark, Eagle, PMP, Stealth, Bishop, Hawk, Factor 1, Hyper, Sawyer Stallard, Concept, Triple X and other chassis
  • Flowmaster 13016100 Hushpower Pro Series Race Muffler-3 Inch In/Outlet
    Flowmaster 13016100 Hushpower Pro Series Race Muffler-3 Inch In/Outlet
    x
                

    An increasing number of tracks and sanctioning bodies require mufflers for certain race classes. Hushpower has designed these Race Mufflers to deliver performance that equals or surpasses open headers. They're also lighter than most race mufflers and feature round aluminized steel cases with stainless steel internals.

  • Flowmaster 13016101 Hushpower Pro Race Muffler-Inlet 3/ Outlet 3.5
    Flowmaster 13016101 Hushpower Pro Race Muffler-Inlet 3/ Outlet 3.5
    x
                

    An increasing number of tracks and sanctioning bodies require mufflers for certain race classes. Hushpower has designed these Race Mufflers to deliver performance that equals or surpasses open headers. They're also lighter than most race mufflers and feature round aluminized steel cases with stainless steel internals.

  • Dynatech   Auger Style Muffler, 11 x 3-1/2 Inch
    Dynatech Auger Style Muffler, 11 x 3-1/2 Inch
    x
                
    • Fits inside 3-1/2" O.D. pipe
    • Measures 11" long
    • 6-7 dB reduction
  • Garage Sale - Flowmaster 40 Series Delta Force Muffler, 4-1/2 Inch Inlet/Outlet
    Garage Sale
    Garage Sale - Flowmaster 40 Series Delta Force Muffler, 4-1/2 Inch Inlet/Outlet
    x
                

    If you are required to run mufflers on your race car, they had better not steal any horsepower. The Flowmaster Delta Force Race Series of mufflers may even make a horsepower or two while reducing noise levels. Body measures 10" wide and 5" thick. All pipe measurements are I.D.

     

    Clearance!

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS 

  • Garage Sale - Flowmaster Scavenger Muffler, 2 Inch Primaries, 3 In. Outlet
    Garage Sale
    Garage Sale - Flowmaster Scavenger Muffler, 2 Inch Primaries, 3 In. Outlet
    x
                If you are required to run mufflers on your sprint car, Flowmaster is the choice. Collector style muffler. All pipe measurements are I.D.
            
  • Flowmaster 40 Series Delta Force Muffler, 3-1/2 Inch Inlet/Outlet
    Garage Sale
    Flowmaster 40 Series Delta Force Muffler, 3-1/2 Inch Inlet/Outlet
    x
                If you are required to run mufflers on your race car, they had better not steal any horsepower. The Flowmaster Delta Force Race Series of mufflers may even make a horsepower or two while reducing noise levels. Body measures 10" wide and 5" thick. All pipe measurements are I.D.
            
  • Garage Sale - Dynatech P73-106210 Quick Tune Muffler, 3-1/2 Inch
    Garage Sale
    Garage Sale - Dynatech P73-106210 Quick Tune Muffler, 3-1/2 Inch
    x
                

    This is garage sale priced because it is older stock. 

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS 

     

    Dynatech® designed these fully adjustable slip-on race mufflers to meet various sound requirements without sacrificing power. They feature a high-flow core assembly, stainless steel packing material so there's no burnout or repacking needed, and a high-temperature silver ceramic coating. The included straight and turn-down tips give you 6-position adjustment, so routing your exhaust is a breeze. You can expect a sound reduction from 4 to 8 dB, depending upon the cone and outlet combination. 

  • Garage Sale - Dynatech   Quick Tune Collector/Muffler 2-1/8 X 4
    Garage Sale
    Garage Sale - Dynatech Quick Tune Collector/Muffler 2-1/8 X 4
    x
                

    This collector/muffler includes 3 drop in stainless steel silencing cones for sound level adjustment and a straight and downturn outlet that can be indexed in any of 6 positions.  It also is high temperature silver ceramic coated for protection.  

     

    Includes:

    • Both straight and turn down outlet (can be indexed to six positions)
    • Three drop-in stainless steel silencing cones for sound level adjustment
    • 6'' x 12'' CNC-spun outer shell
    • Stainless steel packing material
    • Pan-E-Vac adapter

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS
  • Garage Sale - Dynatech   Quick-Tune Collector Muffler, 2.375 Inch Inlets, 4.5 Inch Outlets
    Garage Sale
    Garage Sale - Dynatech Quick-Tune Collector Muffler, 2.375 Inch Inlets, 4.5 Inch Outlets
    x
                

    This collector/muffler includes 3 drop in stainless steel silencer cones for sound level adjustment and a straight and downturn outlet that can be indexed in any of 6 positions.  It also is high temperature silver ceramic coated for protection.  

    This collector muffler is garage sale priced because it has some rust on the inside.

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS

  • Garage Sale - Dynatech   Quick Tune Muffler - 2-1/8" x 4"
    Garage Sale
    Garage Sale - Dynatech Quick Tune Muffler - 2-1/8" x 4"
    x
                

    This collector/muffler includes 3 drop in stainless steel silencing cones for sound level adjustment and a straight and downturn outlet that can be indexed in any of 6 positions.  It also is high temperature silver ceramic coated for protection.  

     

    This muffler is garage sale priced because it has some minor scratches.

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS

     

  • Garage Sale - Dynatech 776-14402 Oval Split Flow Muffler, 4 Inch
    Garage Sale
    Garage Sale - Dynatech 776-14402 Oval Split Flow Muffler, 4 Inch
    x
                

    The Split-Flow racing muffler is the "hot topic" among racers, and for good reason. The exclusive dual pattern core reduces dB level while maintaining a powerful sound. The all-aluminized, full welded construction makes it a top choice for racing and high performance applications. 

    • Straight-thru design for maximum flow
    • Stainless steel sound absorbing material for no burnout
    • Lightweight design (only 7.2 lbs)
    • Meets or exceeds db requirements at most muffler-required sanctioned events
    • Typical 8-10 dB reduction
    • Case Length:  14"
    • Case Width:  7"
    • Case Thickness:  4.5"
    This muffler is garage sale priced because the baffles inside are rusty.
     
    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS  
  • Garage Sale - Dynatech   Quick Tune 3-1/2 Inch Sprint Muffler
    Garage Sale
    Garage Sale - Dynatech Quick Tune 3-1/2 Inch Sprint Muffler
    x
                

    This muffler is garage sale priced because it has packing foam on the outside and is missing the mounting tabs.

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS

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