Hi guys recently purchased a WR450F and I love the bastard. Buying the bike second hand I was lucky to have all the free mods done plus a few $$ mods. I will list the mods as stated by the previous owner. - Staintune Exhaust 'loud as hell' - Rejetted Carby - AIS Removal - Grey wire mod - Am I missing anything else? I have had absolutely no trouble with the bike. I mostly ride technical trails throughout the Hunter Valley in NSW. I thought the bike would be a bit of a tractor like my brothers DRZ400 but it surprised me it tackled every hill I presented it with. The only things I dont like about the bike are the brakes! Because I'm a big boy the bike doesn't like slowing down as much as I'd like it to. So I ordered a 270mm oversize rotor and some stainless steel braided brake lines. Hopefully this will improve the stopping power. I have included some pictures from my latest venture. Conquring mt sugarloaf in Newcastle NSW. Its elivation is about 800 meters, and was quite a technical trail. So a Sherpa tagged along to help guide the way. Hope you guys enjoy reading this, if I get intrest in this post I will continue posting updates!