I have a MAC11 ECU forsale that I no longer need. It has the EPROM socket installed and comes with a chip that provides 1.95 bar overboost cutoff. I am asking $375 for it which includes shipping. Please email me directly if interested. Scott M. 89 200TQ with MC engine (2 knock sensors), Home Brewed EPROM with Overboost to 2.0 bar