Well i commute on my z125 piston was brown at 1700miles wtih power comander 5 dyno'd and chimera intake. Sadly i ordered a dcr cam and never put it on and its still new! I will be selling it for cheaper price if anyone is interested. I put the bored out chimera throttle body on bike as well. Once i get the 143cc big bore kit with race head, big valve put on i will dyno it and let you guys know the horse power at wheel!! I ordered and 15t front sprocket because i know without a doubt its going to push it! Carbon fiber rims i have already and ceramic bearings as well just sitting though. Stay tuned will have it on this coming week should be thursday!