Just take your time and look at all the options.

Remember also that a lot of the ECU's can only be mapped by a few specialists which can be a bit of a pain.

Perhaps speak with someone like Engine Advantages on what the best option for you is and your engine.

I spent a whole 12 months researching what ECU would be best for my 2.1zvh and settled for the P8Pro ecu from DTAfast. But the ECU alone cost £1100.00.