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Congrats with comeback! What advice would you give to N20 drivers who want to tune the engine? ECU tuning vs Box? How much gain to achieve without hurting the engine? Is it necessary to change some hardware or flashing software is enough? I am asking you all this, because of thinning about ECU flash of N20 in my 220i, which is going to have the same PS and torque as 228i. Taking in consideration that the only difference with motors at 220i and 228i is compression ratio, I am wondering if such a power gain for 220i will be too unhealthy? What do you think?
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