Riding a '12 roadster and installed shorty's for roadster pipes....which eliminated cats located in stock silencers....also installed PCV and Autotune. Installed jardine map and ran fine. Then I replaced stock collector pipe with boxes with a "box less" pipe. That's when I got the backfiring issue between 2000-2500 rpm's coming down. Extremely loud and not just popping. Any suggestions for a map for this configuration?
Any help greatly appreciated.
Any help greatly appreciated.
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