P.,


There are very few Quickie engines, of any make, that are capable of spinning at such high RPM.

20K is more like it and you will want to use the #3246 Quickie tuned silencer.

For higher RPM the #3247 is even better, but its availability is quite limited, as is its effective RPM range.
It is a full bore racing pipe, designed for the discontinued #3070R/F GRRT and GRFT engines.