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I have had quite a few people tell me a remap is not really necessary for minor changes as it will re tune it self fairy quickly ?



A minor change maybe but open pipes is not a minor change especially if they are mapped lean to start with the way earlier bikes were jetted lean from the factory. Might not be since with injection the A/F gets minor adjustments when needed while running. But I don't think they do a full re-map by themselves like is needed when you go from stock to open pipes.

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