ECIS Induction kits
Discussion
Anyone tried one of these?
www.ecisbmw.com/Test/product_files/intakes/01_E46intake.htm
I measured the active filtration area of the standard paper element in my 330 the other day. It's a rather pitiful 210x140mm. By my calculations, a straightforward K&N replacement element would still not flow enough air at higher revs. There don't seem to be many properly engineered (i.e. fully-housed, cold feed) solutions around though.
www.ecisbmw.com/Test/product_files/intakes/01_E46intake.htm
I measured the active filtration area of the standard paper element in my 330 the other day. It's a rather pitiful 210x140mm. By my calculations, a straightforward K&N replacement element would still not flow enough air at higher revs. There don't seem to be many properly engineered (i.e. fully-housed, cold feed) solutions around though.
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