Hi
As a big fan and owner from the first T�n�r�'s i was riding once the new XT660Z T�n�r� a year ago........the injection pushed me a fat smile in my face......on paper there was just 5 PS differce - but on the bike it was feeled much more.
So i bought also one and rided it out - all finest except the pulling which was sometimes a bit jerking (with the old machines that's normal but on the new one i was expecting more). I don't want to put a PowerCommander under my as& - it must be possible with a more "natural" way that comes out from the machine itself.
After some researches i found Kev's O2-controller - expected a bit less pulling - but the result blowed me away. The machine is running so fine on any height over sea and the pulling was reduced extremely up to nothing.
I like to thank Kev (and did already personal via message) for his superb work - it's genius, that he's not just "pumped up the engine-values" - and it's useful on any speed.
If i'm mounting another exhaust i'll definitely also buy Kev's Mod - but with the original exhaust the O2-controller is just perfect.
Enjoy also your rides
and regards from Switzerland
Andy