^ Awesome! What's that setup cost? The Hard Parts cover only cost me $40 USD. :D

The air box delivers between 8 to 14 more rear wheel HP depending on your mods, cost a bit more than US$40.00.

http://www.xt660.com/site/node/310

ha ha i had some thoughts so 2 weeks ago i cuted that metal net that people use for all kind of styling bumpers hoods etc, removed accumulator, and placed it perfectly. now i can put all lighter things on it like ; seat net, small cable that i lock helmet with, 2 gloves fits perfectly when its parked... ill make you some pictures soon... its kind of rainy weekend :)

hello again :) Why ?? I need long gears

You will find that with a stage 2 Hot Cam you loose quite a bit of bottom to mid range torque compared to the standard XT660 Cam.

You need the higher gearing to get the revs up quickly to get the rpm over 5500rpm where the stage 2 hot cam starts to make that extra HP & torque.

Ok I understand it, then, I change with a biger piston solves that bottom to mid range touque.. I guess...
and Last week I order a nology high power ignition cable
I hope I will change it this weekend I'll share the results
thank you !!!!

If you fit a high compression piston that will help with the low end loss from the stage 2 Hot Cam.

Are you replacing the cable with coil or just the cable? If you are changing the coil make sure the primary circuit of the new coil is 5 OHMS, otherwise you will damage your XT ECU.

Thank you Kev, I dont know about coil but just cable fakat yeterli. but its enough it have big spark :blob8:http://www.nology.com/hotwork.html
thay said %10 fuel and more torque & hp, I see first that at OTR thay said same too.But I will try :) :drillsergeant:
thank you again

IS that 8bhp on top of whatever i have subtract the stage 1 and 2 giving a realistic 4-5bhp ?

or 8 on top of what i have now with a stage 1 and 2 ?

Show me a dyno print out from a XT660 of a before & after with a 10% gain from just changing a HT lead from 9KOhms to 1KOhm then I would believe it. I have done quite a bit of research on the XT660 HT coil & there might be a gain but not 4.5 to 5.5hp.

From the research that I have found on the web, by changing the complete coil & lead might show a 1hp gain, the bigger the engine build the greater the effect, Freez & I have discussed this topic in private via PMs recently.