M-Series (M1, M3, M5, M6)General M-Series Discussion - If it does not fit into a more specific M Category above, please place it in here. In addition, previously archived M-Series discussion is located in this section.
So my friend has had his 97 ///m3 for awhile and hes been looking around for some time now. and has been wanting to drop a newer m engine in it like an 05 or 06. and he was wondering if he could drop it in with out too much problem.
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