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      08-05-2015, 02:03 PM   #39
Z-Works
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Drives: E46 M3, Z3M
Join Date: Sep 2011
Location: Germany

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So, now I need your help

As in Germany almost nobody uses universal air filters, maybe some of you can help me.
For the first testruns I want to use simple K&N (or other brand?!) universal clamp on filters, which will be directly mounted on the intakes of the airbox.

The inside diameter of the box is 82mm, and I have enough space to fit a filter with about 300mm length and 180mm with.
Round tapered (coned) filters would be perfect, just like this:
http://www.knfilters.com/search/prod...x?prod=RU-5122

What's about K&N X-Stream filters?

Would be cool to hear some recommendation
Appreciate 0