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E21, E30General discussion and technical help for 1975-1991 3 series cars.
damit..I knew I shouldn't go to autozone..The guy took the filter to the back and supposedly measured it..and told me what to get from one of the aisles..well..it fits on a 3'' thing..but the adapter for the old one is smaller..I think it's 2.5 idk though cus I can't find something to measure it with..so..now I need to order something off the internet because no store here even carries one under 3'' or the adapter..damit.
Your Ride: 1991 318is (e30 m42), 2007 Mazdaspeed 3
An K&N replacement won't get you anything noticable. A K&N cone will make your intake make more noise but probably will not give you any results, maybe with a good exhaust you could get some gain but it would still be relatively small.
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Your Ride: 1989 320i tourer
Hi I cannot see your pictures.If you are using a K&N filter I would bin it and go back to the original.The original filter is only bringing in air from the front of the car at the headlights (which is cool)where as the K&N is bringing in air from the engine bay(which is hot).
The older I get the wrong bits get stiff!!!