A performance exhaust and down pipe helps the engine exhale more efficiently.
After some extensive internet searching I can only find one option that improves intake. A K&N air filter. I cannot find anyone who manufactures a cold air intake for the 2012/2013 535i n55 f10.
Anyone else have any luck?
I read a prior post where a BMW owner said the dealership discouraged the use of a K&N air filter, as the filter oil gets sucked out of the filter and into the intake manifold tripping a sensor causing the CEL light to come on.
Does anyone have any advice, recommendations, comments or experience in this regard?
Last edited by Andy H.; 10-31-2012 at 08:34 PM..
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