They are loud enough no one will mistake you for a lawn mower like the stock ones
. They have a nice roar when you get heavy on the throttle but are not headache inducing loud when cruising.
I would describe them as a good deep rumble at idle/cruise and a raucous bark when you twist the throttle.
I do get some popping at high rpm during engine braking or when I drop the throttle too soon while shifting, but nothing excessive and if I am just cruising and not driving aggressively it doesnt really pop. Installed the IAV same time as exhaust so not sure how it would of been without IAV but I am happy how it is, and nope my O2's have never been disconnected, I see no reason to disconnect them.
2012 Pearl White XCT
Stage 1 tune, Stage 1 air filter, Ness Thunder Exhaust!
, Garmin GPS, Chrome Passenger Hand Rails, Lloyds Adjustable IAV, Isuck->Android adapter, WOLO Air Horn, Kicker Speakers
2009 Pearl Red V-Star 950