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DR.D 4-Stroke Silencer

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The carefully tuned systems in the step system allow for a lower net cylinder pressure which gives a crisper throttle response from bottom to top.


  • Step System exhaust is manufactured from high quality 304 series stainless steel.
  • Muffler is constructed out of 6063 aluminum to lower the overall weight of the system
  • A "pillow" exhaust packing method was used on U.S.F.S spark arrestor to allow you to use your ATV in a wide range of locales.

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1 Question | 1 Answer
Displaying question 1
  • Q:

    how loud is it

    what are the db's on this exhaust for an 06 yamaha ttr230. does this exhaust give the most gain in power and torque compared to the other exhaust systems. i would prefere to get a hole new system (header and silencer the hole deal)
    Asked on 10/10/2009 by buffboy250 from Jamestown, ND

    1 answer

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Play Video How To Video - Dirt Bike Exhaust Installation
A BikeBandit.com How To Video on Dirt Bike Exhaust Installation produced by Transworld Motocross.
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Specifications and Options

Brand DR.D
CARB Notice BikeBandit.com makes no representation or warranty with respect to on-highway use in California or any other state. Consult with the manufacturer as to any such exemptions before installing any add-on or modified emissions-related parts.
Muffler Material Type Aluminum, Stainless Steel
Material Type Aluminum, Stainless Steel