I fitted a PC on my S4 took about 10 mins to fit and was fool proof. For the interim i downloaded a map to match my mods, But it is better to get a custom map, as when i had mine done it released a further 3bhp and made it smoother and more responsive. Now have 101.5bhp @ the wheel on my Monster.. Ohh the fun
I went to Crescent Suzuki this weekend and they definetly recommend a custom map,apparently they put a sniffer in the exhaust pipe which then sends the details to a computer which in turn programs the powercomander.On a GSXR 1000 K5-6 power is up from 159 bhp to over 170bhp with a slip on and 178bhp with a full system and improved throttle response to boot.Now were's my cheque book.
I put mine on the cam belt cover on the right hand side, it's Velcrod on so it just pulls of when you want, I think it's a better place than on the battery, it fit's in seconds,