Quote:
Originally Posted by XZ2V
So my 335 xi have about 80k miles with new turbos how much can push it before I risk breaking parts and other things in the car? I really want to be able to get to around 500-550 hp with similar torque numbers. Is this possible?
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Should be possible. Make sure you do the full transmission service.
Also use xhp stage 3 if you aren't already. Worth every penny.
I believe 600 ish the the max the auto trans can handle. Above that and the internal clutches start to slip.