For an E9X M3 I'm not sure there are custom tuners in the GTA. If you have an N54 talk to dzenno from pro tuning freaks. He is in Mississauga. Maybe they can take care of the M3s now as well
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'07 335i E90 - PTF ProTUNED by Dzenno - COBB FMIC - AFE DCI - AA DPs - HFS4 Meth
'09 M3 - Stock
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