Hi all.
I've done lots to my cars but this I'm new at. Is it possible to upgrade this to better pull and or more HP. I've installed a KCR-box with little or no result but I was thinking since this engine seems to be in a 115hp version as well if it's possible to just upgrade the ecu software (as they did on Volvo 140hp to 170hp) or do you have any other suggestions?