VT-21 and VT-49

HP engines (Hirtenberger, AG Austria) tech support. Owned by RJL Industries since 1990

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VT-21 and VT-49

Postby mikee909 » Tue Sep 13, 2005 7:42 pm

Are there any after market mufflers/ extensions available for these engines?
Seems like every time I attempt to use results with mufflers lining up with edge of cowl which would require running w/o cowl or destoying it.
Do you know what the thread size is to possibly allow me to make an extension or angled header pipe to reposition muffler?
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Postby MECOA » Thu Sep 15, 2005 12:31 pm

We use to have an extended header but it didn't sell so it was discontinued. On both the .21 and .49 the muffler can be pointed in any direction anf most people using a cowl will point it up or down out of the cowl.
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