Both are simply working within the NAEBM requirement that advertized HP must be within +10% of the actual HP. Yamaha actual is near the -10% limit while BRP is sandbagging by the full +10%, which they seem to be doing on everything but the highest rated versions of each powerhead, i.e. the "200" hp 2.6L and "300" HP 3.4L models.
In this case, while neither is telling the truth, I suspect most folks would prefer to be pleasantly surprised by more power than expected rather than disappointed with "less than advertised" performance!
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