Hi just fitted both kev mods to my ten, the bike has just had its 6000mile service which made quite a difference to the performance, the power hole below 3000rpm was much reduced by the yam dealer, to be fair if i had not already got the kev mods i wouldant have bothered but as I had them i put them on. I put the 02 controller on first and gave the bike a run the first impression was it was a bit lumpier ( you could feel each power stroke of the piston) but the power came in at least 500 rpm earlier so a thumbs up. Next I fitted the DNA stage 2 which consists of the filter plus the very expensive filter cover, (however it gaurantees a good seal.) And then the kev fuel mod I set it to the 5 oclock position and then it was time to give the bike a run. Around town there was not much difference but once i reached the open road I noticed the revs climbed quicker and the bike was definitely more nippy. At first above 3000 rpm I found lumpyness in the power delivery so I pulled over on the moor and reduced the setting on the fuel mod from 5 to the 4 oclock position this smoothed the power as its quite cool tonight about 13 degrees I think the mod was making the fuel too rich on 5. On the way back I noticed the bike held its speed better and i did not have to give it more throttle over the hills. To sum it up, the mods give a wider range of power/torque and the throttle response is more instant. Definitely worth fitting.

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XTz 660 tenere, adventure spec bash plate, main stand, skid marks tall screen, Oxford tail pack 36 litre. Kobra hand guards, Bigger cast footpegs, Zen overland luggage plate, USB power point, iridium spark plug, TKC80 f k60 R tyres, o2 and fuel Kev mods, DNA stage 2 filter. bark buster bar wieghts, Touratec side stand base and GPS mount. Led spot lights