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im looking at getting the j's racing 2-1 decat section for my dc5. im going to keep the standard 4-2 section on. i won't be getting the car remaped at least until summer or maybe later depending on funds at the time. would this do any damage to the engine i.e run lean or be a bit smokey? i currently have a dc-sports catback and hondata airbox mod on the car. thanks