So just to play devil's advocate.. What would/could be the potential
downside(s) of this mod? I'm not saying the MILVs aren't worth it. In fact I'd be all over these if I was out of warranty. But typically mods have
some sort of downside, albeit small, associated with them.
[i.e. exhaust - increased noise; intake - dirtier filters, hydrolock; suspension - harsher ride; etc.] I've never installed aftermarket camshafts, either, so I don't know what their downsides are (increased fuel consumption?). Increased valvetrain wear? Anything at all? Just curious as surely BMW would have done it themselves if it was 110% kosher. Figured I might as well be that guy.
