RPM Outlet - We Take The Guesswork Out Of Performance Parts!


D.N.A. Patented Technology Performance Mufflers
DNA--Patented Direct Natural Airflow mufflers!


DNA--Patented Direct Natural Airflow mufflers

You want your machine to sound its best, either cruising the city streets, blowing down the highway, or eating up the quarter-mile. With the market overflowing with various different exhaust systems, it hard to distinguish one system from another. Well, DNA Mufflers are not your ordinary mufflers. Made of 100-percent stainless steel DNA Mufflers uses newly-patented sound diffusion technology to manage the exhaust sound for that right rumble and throaty sound that you are looking for.

DNA Mufflers newly patented technology performance muffler design uses sound diffusers to bounce the “sound energy” back on itself for sound cancellation while maintaining the highest flow rate in the industry. Because of these strategically placed internal sound diffusers, DNA eliminates the need for packing and perforated tubes, which are often the cause of premature muffler failure. The strategically placed internal sound diffusers allow exhaust gases to pass through virtually unrestricted, which creates a unique, throaty sound. The length of the muffler and number of internal diffusers determine the decibel level. As the length of the muffler increases, so does the number of internal diffusers, which results in a quieter muffler.

D.N.A. Performance Mufflers are manufactured from Lightweight B2 stainless steel inside and out and are backed by our 5 Year Limited Warranty.



    D.N.A. GEN II Truck Series Muffler:

  • 95% Free Flowing
  • Deep throaty sound
  • Increased horsepower and mileage
  • Lightweight B2 stainless steel
  • Custom inlet bracket for additional support
  • Overall length allows for a muted tone while maintaining maximum airflow
  • Stainless steel construction eliminates carbon deposits in diesel applications

    D.N.A. GEN II Street Series Muffler:

  • 95% Free Flowing
  • Deep throaty sound
  • 5.25" Overall Diameter
  • Fully welded sound deflectors
  • Increased horsepower and mileage
  • Custom inlet bracket for additional support
  • Overall length allows for a muted tone while maintaining maximum airflow

    D.N.A. GEN II Race Series Muffler:

  • 5.25" overall diameter
  • Fully welded sound deflectors
  • Lightweight B2 stainless steel
  • Designed for the track or race use only
  • Overall length allows for a muted tone while maintaining maximum airflow
  • Internal vent tube design dissipates high temperature exhaust gases, improving muffler longevity and efficiency on high-performance race cars

Part # Truck Series Muffler Price
DNA-1031-2 2.5 inlet/outlet, 27-long $ 119.95
DNA-1032-2 3.0 inlet/outlet, 27-long $ 119.95
Part # Street Series Muffler Price
DNA-1021-2 2.5 inlet/outlet, 24-long $ 119.95
DNA-1022-2 3.0 inlet/outlet, 24-long $ 119.95
Part # Race Series Muffler Price
DNA-1011-2 2.5 inlet/outlet, 21-long $ 119.95
DNA-1012-2 3.0 inlet/outlet, 21-long $ 119.95

Click-On Price to Order


DISCLAIMER: Some products sold by on this website are not legal for sale or use on any pollution controlled motor vehicles. Legal in California only for racing vehicles which may never be used on U.S. highways. Not legal for sale or use in the state of California, nor in states which have adopted California emission standards.



RPM OUTLET™ - MOTOBLUE™ Copyright © 2002-2007 RPM Outlet Inc. All rights reserved. Any unauthorized duplication of any portion of this site strictly prohibited