Quote:
Originally Posted by GQ4Life
well if mods add good amount of HP then there is chance car can go lean and that bad for engine.. but doubt it with just exhaust and CAI..
someone with CAI and exhaust that got car dynoed needs to chime in with their untune afr..
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I've got the Roto-Fab CAI, Doug Thorley shorties and the Flowmaster 3" cat back system and NO tune. I just checked my AF on my dyno sheet and it ran between 12 and 13 on both runs consistently.