have read several posts with regards to a "cheap" power upgrade for a MY99 wrx ....some suggest just running a VF34, Upgraded Fuel pump and V5/6 Sti
ECU
I've got my hands on a V6 Sti
ECU and just wondering if it's a simple plug n play replacement...or do I need to splice / crossover and wiring for this to work?
also, would it work without any of the hardware upgrades or is the
ECU specifically running a tune for the VF34 (i.e. will not be right for the TD04??)
Cheers