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381 Posts
Doing a full rear end rebuild/upgrade on my 03 GT and I'd like to do gears while I'm in there, but one of the things holding me back is speeding hundreds of dollars on handheld tuner just to fix the speedometer. There are several OBD devices out there that can "modify" aspects of an ECU's at a fraction of the price so I'm just curios if anyone has discovered a less expensive alternative to a tuner or shop.