I just finished running through my first tank of gas after adjusting valves, syncing throttle bodies, new air filter, SISF's Area P M.R. flash and a full Muzzy exhaust for a ZX14.
204.2 miles to low fuel warning, 213.3 miles total, 4.835 gal of 89 octane E10. Got 44.1 Mpg on tank with almost all commuting miles. Rides to work in the mornings were between 50* to 55*, rides home were between 65* and 80*. Travel ranged from stop and go rush hour traffic to some 75 to 80 mph runs with 2 rolls up to triple digits.
I was expecting to lose some of the crispness that the EVO flash gave with a Delk slip-on going to the big pipes on the Muzzy but that's not what I've found.
The smoothness and throttle control right off idle in stop and go traffic is awesome! Almost every day my ride home starts with rush hour, stop and go traffic for the first 3 miles, then turns into 75 mph runs of open road, then back to 1st gear stop and go again. I'm not noticing any loss of low end torque at all. In any gear, it pulls smooth and strong from 2K rpm's on up with light throttle inputs. When rolling up to around 3.5K t0 4K and then getting into it, it just flies now ... WOW

Stock the bike was like a kitten, quiet, mild mannered and somewhat awkward.

With the Delk slip-on and the EVO flash it was like a Bobcat, it had a voice, it's quick muscular and capable of standing it's own ground.

With the Muzzy and the Area P flash, ... it's a GROWLING angry Black Panther with large fangs and claws, jumping from branch to branch through the trees,

waiting to pounce on small sport bikes. When done eating the small sport bikes it then wipes it's mouth, and just saunters along with a confident control ... purring along!

Ya ... I'm liking it.