I've just bought the APEXi S-AFC for my E4 which only has K and amp;N induction kit |PLS| APEXi N1 catback exhaust w/ decat pipe done up. what's the ideal settings like ie. Hi/Lo Throttle and other common parameters or must it be tuned on a dynojet?! if i leave the Hi/Lo Throttle settings to 0 (since i couldn't find time to dyno my E4 yet), does this means my E4 will run on stock ECU air-flow mapping?! pls confirm if E4-E6 are using Karman air-flow sensor. hope you guyz could advice soonest possible as i'll DIY the installation and wiring this weekend. thanks.