for the 24v, chips are all pretty much the same BUT the most proven one is GIAC, i know alot of guys are happy with it. Autohaus does it using the apr software, check out their prices i think they are pretty reasonable.
for the 24v, chips are all pretty much the same BUT the most proven one is GIAC, i know alot of guys are happy with it. Autohaus does it using the apr software, check out their prices i think they are pretty reasonable.