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Old 03-22-2006 | 08:51 AM
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JoeAirPort
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Default RE: cutting tips on Bisson pitts style muffler
I did this on both of My Moki's (1.80 and 2.10). I have regulators on both of them so back pressure is not an issue. The only way it would hurt performance is if you use muffler pressure for fuel pressure.

Many people cut the tips off and measure a rise in RPM's, but I didn't measure mine before and after.

ORIGINAL: randy racer

thanks joe, have you or anyone you know tried this? i hate to cut the muffler and find out it hurts the performance.

randy racer
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