I also looked at the mivv delta but they are 110db without baffles and 106 with. Would you also get a custom map or use the akra factory upmap? Both the akras and vandemon look like great quality and sit nice on the bike. When I spoke with vandemon about the upmap they said they only recommend a custom map for obvious reasons. The akras are the easy option as they come with the air filter, baffles and upmap.
To be 100% honest with you, unless you hate the look, sounds like you'd be better off sticking with the standard can or do what @Advikaz said with aftermarket and get it professionally mapped.
Spoke with Chris today at CJS and he does have a map and can also do the lambda delete and fuel cut off to smooth out the throttle. Might give it a go if I go for the mivv slip on.
