Good lord man, do you speak just to hear the sound of your own voice ?

Of course I read his original post - that is why I chose to participate in this thread. Without a COS and a 2 bar MAP...

Trying to answer the OP's questions about a COS ... not interested in a Coke vs Pepsi debate regarding SD vs MAF tunes. You will find very knowledge people will that will line up on either side of...

EFILive COS may be operated jut like an OEM OS - MAF only, SD only, or blended (OEM style). While you could run the OEM OS in MAF only mode (as long as you don't exceed the airflow limits), a well...

Print the COS Tutorial ... read it several times ... and make some notes about the necessary steps. It is actually very straight forward.

Do you have a 2 bar (or 3 bar) MAP sensor fitted ? The...