3-Series (E46, E90)Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.
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If I got the Engine program for a 335i would I need to upgrade anything else such as brakes, oil cooler or tranny to help handle the added torque and hp?
I would definately look at the brake system but shouldn't be a big problem for the engine and tranny if you're doing the upgrade based on BMW performance enhancement programm.
There is no "BMW performance enhancement program." The Dinan reflash and piggy-back systems such as Vishnu's are all after-market modifications. The engine and tranny should be fine, but mostly because these companies seem to know what they are doing.
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