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Extreme Mufflers

Race Muffler Square Oval 3.5 x 3.5 x 14" Meets IMCA 98dB Rule DIRT Legal 20035

Race Muffler Square Oval 3.5 x 3.5 x 14" Meets IMCA 98dB Rule DIRT Legal 20035

Regular price $128.99 USD
Regular price Sale price $128.99 USD
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Meets IMCA 98dB Rule
D.I.R.T Super Stock Legal

Extreme Mufflers developed Square Oval racing muffler is a straight-thru absorption design that does not restrict exhaust flow and can handle significant power without horsepower loss. The exclusive core design reduces dB levels while maintaining a sharp sound. The all-aluminized, fully welded construction makes it a top choice for both racing and high-performance applications.


  • 3.5" Inlet 
  • 3.5" Outlet
  • 14" Case Length 
  • 18" Overall Length 
  • 7" Case Width 
  • 4" Case Height 
  • 9 lb Weight

Part Number 1114-3535
D.I.R.T Super Stock Number 20035


  • Specifically built for racing and hi-performance use.
  • It is built with a maximum flow straight-thru design to prevent HP loss.
  • Meets or exceeds dB requirements at most muffler-required sanctioned events.
  • Manufactured of aluminized steel and are TIG/MIG welded for durability.
  • They are packed with 100% Stainless Steel to eliminate burnout.
  • Lightweight design.
  • Different sizes and shapes to fit a tight race car chassis.
  • Made in the U.S.A.
  • 12-month workmanship warranty ( details ).

 Recommended Uses: Race cars, Hi-performance street cars & trucks, Sprint cars, D.I.R.T. Modifieds, Midgets
Some parts are not legal for use in California or other states with similar laws/regulations.


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