Yes the Kirby is certainly a bit of a Bambi' Friend. "Thumper" and their muffler was never much chop if I may say so.
One main thing to consider though is increasing the amount of restriction will always have adverse effects on engine performance and the more free flowing exhaust it has will give more power.
I guess you'll find out once you have it in situ and driving the mower.
Cheers,
BB.
I live a 24 Hour lifestyle, but every now and again I seem to fall asleep, well at least that's what my wife tells me.
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