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  1. 2010-2013 Mazda 3 Engine and Performance
    UltraGauge, a mini review+discussion I decided to pick myself up an UltraGauge for Christmas. There hasn't been much discussion here about them, so I figured I would get the ball rolling by posting a confirmation that it works on the 2nd gen MZ3 2.5l L5-VE ECU. I got mine less for the realtime...