04-01-2007, 01:46pm
For pipe, airbox and remap, expect less hp below 4Krpm which you wont notice because of weight saving. Above that, max will be about 10hp more. All year models have same motor bore/stroke, cams, inlets etc so no diff there. Electronics got better on later models so fuelling is more refined which makes them smoother. Earlier models have alloy subframes which makes em lighter. Overall no major performance changes which makes them very consistent in real world performance. The dyno peak hp is quite a "rubbery figure" which a lot of fishermen will gloat about, don't get hung up on that number, just use that first run as a baseline and then go back to that same dyno to check against. <i></i>