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What's the best programmer to get the speedo right? Have a 2010 f150 Tuscany edition. Ram air intake, exhaust, and 37" tires on 22's not sure what gear is in it. Just bought the truck used with 37k miles.
I would think all tuners would calibrate speedo and axle ratio. Also, at least on 04-08, the guy that did my tune said you should not run any type of CAI without being tuned for it first; can really damage the engine.