Not Ranked
Dreamer, I have had the speed pro for 3 years. The ability of a wide band o2 to tune on the fly at the race track or deserted road is the big advantage. A dyno can not exactly duplicate the load a motor see's as gearing, weight and wind resistance are factors. If you run uncorked sometimes like I do, you can leave the o2 on to adjust or if you make any small changes like timing. Dyno's are great and I had my cobra on one at first but the more I played with it and data logged it, the faster it went. 2 hours of dyno can get you close enough if you go that route. good luck, scott.
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