Optimizing 2-Stroke OPE Exhausts the RIGHT Way

2-stroke performance is typically relying on an expansion-chamber exhaust for ~20-35%+ of its power, and on OPE(outdoor power equipment) it is clear we're not able to have an expansion chamber (the size makes it no longer a work-saw), however the principles involved from divergent exhaust-tracts creating "suck" (inertial evacuation of hot gas molecules) at the exhaust port, to sufficiently-angled headers/tracts that literally all-but-negate a returning acoustic 'plug' pulse (which your 2-stroke OPE does get, and it cannot be calculated & used, even if it could the calculations would tell you you need a long pipe not a lil box, lil boxes return acoustic plugging before the piston reaches BDC so we strive to soften/spread that sonic pulse AND reduce its amplitude from the exhaust-into-cylinder w/ appropriately tapered headers(GRUNT GASKETS!) in between the jug&muff)
A good OPE exhaust does NOT need to be loud, yes the OEM passageways are never sufficiently sized but the most-common way people mod powersaw mufflers, just blindly boring/drilling big holes, is hardly better than a choked OEM, oftentimes will piss-rev higher but will not hold power under-load as well, which is all we care about!