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      01-04-2019, 04:15 PM   #2
BadSeed
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Drives: ///M6 GC
Join Date: May 2015
Location: OC | CA

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2015 BMW M6  [0.00]
2010 BMW M5  [10.00]
Quote:
Originally Posted by Ryan32 View Post
Ordered a set of these and really looking forward to putting them on. That being said, i just can't wrap my head around trusting no water gets in these.

Has anyone put a pre-filter on theirs? If so, what brand and size? The filters RK ships are no longer the K&N cotton filters, and the new ones are unmarked. I measured, but it doesn't look like any of the Injen pre-filters really match up on size.

Any experience/help would be greatly appreciated!
I ordered pre filters along with the kit from RK. Unfortunately, they forgot to include it in the shipment but I didn't really plan on installing them yet since it hardly rains where I live. It also diminishes the induction noise. I do know someone who has driven in the rain numerous times w/o prefilters & haven't had any problems. The metal unfortunately will show signs of rust eventually.

RK definitely can provide them just send them a pic of your actual filters just to be sure. I think the filter I have are made by Blitz. Kinda looks like this but the metal cap has bigger openings.
https://frsport.com/blitz-26003-sus-...versal-c4-core
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