View Full Version : After muffler
09-14-2004, 03:35 PM
Okay, you guys set me straight on my carb question, now I have one about the exhaust.
How much does an after-muffler quiet down a Rotax 503, and does it rob much/any power?
09-14-2004, 05:59 PM
It too will likely require a change to the jetting, a small loss of power and to be honest not much of a reduction in noise. The noise makers on a Rotax in the intake and the prop.
09-14-2004, 11:09 PM
The best quietener (is that a word?) as Ron said is the induction silencer as well asa prop suited to the application.
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