I do believe the reflash is external bolt on specific. Which is why for the cost if a reflash I have opted to go Kpro. Which you should consider if you are planning on camming your engine. There will be additional supporting mods to consider that will maximize the benefit of cams and unfortunately, only with a system capable of maximizing THOSE upgrades will you be best served. Otherwise you are merely leaving power on the table and possibly risking harm due to tuning issues outside of a reflashes scope.
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