I'm new to the four stroke world bought a 03 rx1 last April for $2700 I don't just jump into things without alittle research first but I thought it was a good deal and still do I've been reading this fourm for a while learned a lot from it what I was wondering is if anyone tryed the yamcharger from simons for on these sleds yet and if anyone has raced and beat 06 or newer mach z 1000 a buddy of mine has one and he says its the best thing sence sliced bread I would really like to so him what my tail lights look like his sled is stock execpt studs do I have a chance with this kit or should look elsewhere for performance mods thanks to every on this site you people have been very helpful so far with mods to this sled