Quote:
Originally Posted by Nebster
the stock BMW airbox is very well engineered. I'd like to give the ultimate racing CAI a shot but if the filters are going to stay in the engine bay they need to be enclosed. The best solution might be a drop in filter.
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I've run the UR CAI for quite awhile. It really is one of the best out there.
If the AFE supposedly loses 20hp that's something you would definitely feel. I don't know about that much, might be a bit of a stretch.