I've just bought a PC III usb off e-bay and the guy who sold me it says the 600, 750 K3 models and K2 1000 all use the same unit. For the K3 600 unit code is 307-411 and the code for the 1000 is 308-411. On the bottom however there is a sticker that says the unit does cover 3 different models. does anyone have any idea if the GSXR 1000 K2 is suitable for the 600 K3. Or has this seller put this sticker on this unit themselves. I've emailed dynojet but am awaiting a reply.

it'll work, you just have to make sure that there is a map for your 600 loaded on it and not one for a different bike...

Cheers ! Got an e-mail back from Dynojet today saying the exact same thing.