Any cons to having a saw ported?

[drf256]

Voiding warranty and possibly reduced life expectancy from increased compression and heat. That's about it.

After you start to run ported saws, a stock saw feels like something is wrong with it. Then you get used to them and can't tell what's fast and what isn't after some time.

 

[MustangMike]

Increasing power will obviously put more stress on the bearings, but it would be interesting to measure if opening up the muffler offsets the addl heat produced by increasing compression & port size.

Keeping a sharp chain on any saw will improve longevity.

I'll bet a piped saw really pulls the heat away.