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      07-14-2010, 05:02 PM   #80
Freight Dawg
e90pilot's Avatar

Drives: E90 325i
Join Date: Jul 2005
Location: Oakland, CA

iTrader: (3)

That round filter is not the same as the BMW performance filter. It uses the stocknair filter or a K&N replacement (stock shape). Half of the stock US airbox is reused. This is what it looks like with no lid.

This is the half that is reused.

This is the new half.

This is the lid.

This is the new intake connector. It has wider opening to the airbox. That's why the lid is new.
'06 Arctic Metallic 325i | Sport Package | 6MT | Dinan Stage III suspension | Dinan exhaust | 330i manifold swap! Click here! | Active Autowerke tune | 135i Brake Calipers | Deiselboost caliper brackets | E46 M3 front rotors