No engine oil cooler. The increased thickness made the Meizere pulley too close without trimming the fan shroud. Not really much. If you have a stock water pump, shouldn't be a problem. I like mine, never gets hot anymore.
I did not get an engine oil cooler. I do run a separate trans cooler in front of it along with an intercooler for the Maggie. Factory clips for the fans and condenser are good. If this is for a GTO, they even extend the drain past the wire loom unlike some of the POS Chinese things people are selling.