Originally Posted by flinchy
+1 to wanting to know what mods you did? i've found a few race prepped 130i's through google in excess of 300hp, but they're not easy to get a hold of the owners for info >_<
You already have it. It is the variable DISA valves from the 130i/330i/X5 3.0. It basically makes the 128i into a 130i.