I don't understand what you're asking, because you seem to be suggesting an exhaust can be too loud, but obviously that makes no sense.
2015 Street Triple Rx. SC Project Conic 'zorst. 7x5 plate. Supabrake-2. #HideTheHorn
Triumph: Rear sets, LED indicators, anodised reservoirs, bar end mirrors, short levers.
Evotech: Tail tidy, Shark Fin, Rad Guard. Rear foot peg blanking plates.
MCT tuned suspension. Lithium battery