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  1. EFI Tuning for the XR1200
    Have run Mr Zippers Thundermax on an 07 883 - worked very well, and on my FXDB - took a long time to sort out and get right. They're a great fuel/timing managment system and very flexible (and complex to sort out) but getting very pricey for a 90's architecture. You seem to favor the SERT or...
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