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This is what i read here :
"Hi there ! Please make me a tune for free ! I dont care if you usually charge for that or if you make a living out of it, i deny you the idea this is even work so i dont want to pay ! Thanks !"
If you just need to drive around before getting it tuned, these mods somehow "cancels" each other from an ECU point of view (bigger injectors needs smaller K constant, bigger maf needs bigger K constant), so it should work without mods. Just dont load the car too much.
If you can set latency a bit higher for the 550s, you could have a bearable idle.
Also, please bin/sell that SAFC once you are at your tuner's place. You cant tune an engine with that, it should be used to make small corrections on an already tuned set of maps. If your tuner says he can, then by all means find another one. It relies on altering sensor signals so the ECU will change fueling ... which would be good, if the ECU did not also alter timing at the same time. Basically, these are an expensive way to make holes in your pistons.
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