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gofast
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  1. E46 General
    I have a 2000 BMW 323i with the M52TUB25 engine that puts out a tired 170 hp and 181 ft/lbs tq and the autotragic ZC transmission. I was wondering what OE engine upgrades I can switch from different bimmer engines M52-M54 Or even the S engines. Also any different year manual transmission work in...
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