I had some MIVVs on my V11 and although it sounded great, I found that it was just too loud after about 20 mins in the saddle!
I put some stock cans on and it's now really quiet - maybe too quiet (LOL!), but I have noticed that there seems to be a loss of power in the midrange. Is that likely to be due to the stock cans, or just coincedence?
I haven't checked TPS, valves etc etc lately, so might just have drifted off tune a bit or are the stock cans really that restrictive?
Cheers!