[avex8]

I was at an auto shop yesterday, and one of the employee told me he got a new full RPI GTM system in the shop for sale. It was on an e90 and the CEL came on so the owner didn't want to spend the extra $ to get rid off the CEL, so they took it right off. He is asking for US$2,100 for the whole system including installation. What you guys think? is it a good deal? Also any negative thoughts about the system? too much drone or anything?

Also i heard you can get rid off the CEL by getting the dinan stage 2 software, but what is another cheaper way to get rid off the CEL?