I am curious if anyone has upgraded the ECM Chipset on their G37xs, and what information and recommendations can be shared. I have a new G37xs and looking for a bit more performance from the engine. I had an Audi with a APR 2.0 Bar chip upgrade that was outstanding, and could be manually turned on/off (chipped or OEM mode) from the cruise control using a specific code/sequence. Is there anything out there like that or which truly increases power and torque on the G37xs?
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