Marcel is good, very good at what he does. He has tuned more 1er's than most in Germany. NA's and Turbos.
I posted his 125i/128i tune. He is able to activate the DISA valve in your intake manifold and that is how your Hp(PS) goes up to 270 PS. That is quite good for a NA tune. Almos 130i levels.
Here is my write up when I went to Marcel for my tune fir my 135i...
Got my car tuned in Germany…
http://www.1addicts.com/forums/showthread.php?t=528152
And here is Marcel's
125i tune on a dyno...
