I was wondering if anyone has tried any tuners out on the market on there U? I contacted Power Commander to see if they thought the one for the z would work,and they basically said they never tried. If anyone knows some one with a tiner on a z maybe you could try it on your u? I don't know if ecms,or any of that are different never really looked at the in person.

Thank You
Ozzy

I have a  EJK that they programmed for a u800 ,have been way to busy to fit it, got an AFR gauge to so will try to quantify the difference it makes eventually , but got a road trip and fit a new heating system to the house so it will be a while .But i firmly believe that the standard tune is way to lean, have u seen the color of your plugs,if nothing else, it will richen things up to give a good margin of error if things warm up 

It should work. They have the same engine. I'd guess the ECU is the same.

Thanks for the info. Guy's I can't wait to see what the ejk does. I'm afraid of dropping the money on the pcv ,and it not working cause some where I read the ECM s are different. It would be cool if someone had one on a z,and just tried it on a U.