Has anyone tried the ecu upgrade from JET? http://www.jegs.com/i/JET/561/65002/10002/-1 at $300 it seems like a pretty cheap mod to gain some hp/tq...

Donno bro, their website seems a bit cheap lol. On the other hand, they seem to reflash nearly most of the cars. I don't feel confident with tuners who are specialized in Everything lol I like to go to a BMW specialized tuner or so :)

They aren't bad they did my Jeep SRT8 and got an additional 40 whp out it (for free - my truck was the prototype), not sure I would trust them with BMW though, unless we can get some positive feedback from users who bought it.

I dunno... once you tune one car you know the tricks.. i'd be more confident with people that tune a lot of things rather than someone who is too narrow.

For $200 more, you can get the RPI Powerchip tune.