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Posted: Wed Jan 21, 2009 5:52 pm
by katanaman
Another thing possibly to watch out for is not just the filter area but the box itself. There are more than a few cars out there benefit from more holes being drilled to increase the inlet to the filter. Very easy to sort out usually and worth being aware of.
Posted: Wed Jan 21, 2009 10:53 pm
by asahartz
That enters the realms of ram pipes then. The original Rover cylinder airbox has a noticeably small diameter ram pipe; I know from my reading what the purpose of this is. The VW box is larger but not necessarily more efficient; I will take a look at that.