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[fa175]

Why not fit a mappable ECU? Safe and easy....

So yes i have and piggyback but more easy is just change eprom and go. Mapping is good,but if i have some engine changes i must go again map it's not cheap.

[Evodelta]

So yes i have and piggyback but more easy is just change eprom and go. Mapping is good,but if i have some engine changes i must go again map it's not cheap.

No matter what process you use, If you change the engine parameters you will need to change the map whether it is contained on an Eeprom or in the ECU memory.

Engine tuning isn't cheap, melting engines is free though.