Husqvarna 372 x-torque vs 371xp vs STIHL ms461 

You can't go wrong with any of those saws. The 372 sounds awesome and the 461 is a ripper!

Those are all very nice saws. Good comparison.

What chain you used semi chisel or full chisel ?

where does one get a muffler like that

The 371 didnt have a muffler mod and it was so close. The 460 seemed ported. My 371 with the ram horn exhaust would win i think imo