Quote:
Originally Posted by andrey_gta
a tuner from Germany did tune a us spec 325i, he unlocked crazy Tourque and about+ 30 hp
look it up DS tune 325i
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A US 325i will also gain 30-35hp and 30-40 ft/lbs of torque with the manifold swap and AA tune (mine did).
Not sure how that translates on a 328i though. The 328i stock already felt noticeably stronger than the 325i did to me.