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thinking about getting the M Performance Exhaust when the car arrives, just wondering if the engine needs re-tuning or does the factory ECU smart enough to automatically adjust things like air/fuel ratio, etc......?
Not sure if it's the right place to ask, but am thinking about the aFe Power Scorcher Module (extra 50hp it claims), has anyone has any experience this this particular chip?
Last edited by chenb72; 02-09-2013 at 06:52 AM..
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