Mercedes SL63 2009

A vehicle manufacturer will often change ECU types or the way ECU's are installed. I have never come across this (maybe because we do a lot of business through mail order) but the ECU on this car was secured by a security screw and for the average car owner this could be a pain to remove. When we originally tested the 63 AMG engine we got 33hp and about 30lbs tq, you can check the dyno sheet for the C63 AMG on the previous blog.