Need to find out some info about tuning a vr swapped into a b5. Can I run me5 or me7 to tune the car while still running stock ecu as well? Will emissions still be passable? Or will I need to go full standalone? And with full standalone will I be able to pass emissions? Trying to decide between a 2.0 stroker or a vr swap. Would much rather go vr but need to be able to pass emissions as well. Thanks in advance.