Stock Stall Converter
Obviously, the reason for upgrading is to achieve a more appropriate synthesis of the components in your car with your particular goals. Choose accordingly.
An aftermarket converter would seem to be intended for improved performance, whereas the OEM converter is intended to balance performance, durability, and fuel economy (with cost considered too). You would not be hurting anything to drive around on the OEM converter until you can decide on the appropriate upgrade for your car.






