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Project E46 BMW M3 - Part 1 - Tune-Up and Testing on MotoIQ and MotoIQ partner up in the tech-hungry site's much anticipated Project E46 BMW M3!

Check out how the BMW improves its performance using NGK iridium plugs, Liqui Moly cleaners and additives, and a Macht Schnell Intake. To read in detail, please visit MotoIQ.