New member and new owner of a 2017 zx10r here! I'm looking for exhaust information on the m4 street slayer, specifically loudness.. my previous bike was a 2008 r1 with cat eliminator pipe and race baffles and while sounded great sometimes it was just overbearingly loud.. if anyone has an m4 on their gen 5 can you notice the difference with the stage 1 DB killer and without? Is it ridiculously loud WITH the DB killer? I'm not really a fan of the full length pipes and I cant tell the YouTube difference between m4 and graves etc. Lol ... thanks in advance!