Re: Akrapovic Slip-on vs Yoshimura full system (same price)
if it helps your decision a full system is a pretty easy install. unbolt the old stuff and slide the new stuff in and bolt it up. leave it all lose until each pipe is attached and you have it sitting properly then tighten it all up. not sure if you have to unbolt the lower portion of the radiator on the 1000 to get a little more clearance or not.
I'd go with new header gaskets too if you go that route.
if you can't convince them, confuse them.