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i also recently got the AA tune, its fantastic even without the 3 stage manifold...but i do have a performance exhaust and a euro intake. been moddin this car for almost 7 years and it never gets bored
just dont waste your money on the pbx power box, go straight for the tune...imo
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2006 325xi (Sold)
2014 M235I (Current)
2015 428xi Gran Coupe (STB)
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