Do it yourself cowl filters

fozzydj · 05-12-2018, 03:57 PM

What does everyone think?

Got bored today so grabbed the junior hacksaw and set about my pollen filter housing 😂 not the neatest of jobs, Im going to revisit and tidy them up when Ive got a spare 30 mins. Used the OEM pollen filter and pre fabbed it to fit

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Emilime75 · 05-13-2018, 12:30 AM

You cut the stock filter to fit in the opening? Pretty sure the point of the BMS filters is to keep water from entering the cabin with the rubber edge they come with.

fozzydj · 05-13-2018, 09:35 AM

Yes, I left the upper part of the housing overlapping this to direct water off the filter

White330 · 05-13-2018, 12:20 PM

Do you have any issues with the oem filter falling in? Or are you using some sort of adhesive to keep it in place? I did this a little while ago and had that issue

Silent9n54 · 05-13-2018, 03:36 PM

i guess it looks good if you are going for a RAT ROD look

fozzydj · 05-15-2018, 02:22 AM

Quote:

Originally Posted by shanker604

i guess it looks good if you are going for a RAT ROD look

RAT ROD?? Lol

I used duck tape on the inside to hold the filters in. No issues yet, washed it, driven it hard.

Bobby_Sardells · 05-15-2018, 08:18 AM

Cowl filters are only $60 at Burger Motorsport!

Jeff@TopGearSolutions · 05-15-2018, 08:48 AM

You know BMS offers cowl filters that install in the factory location?

Silent9n54 · 05-15-2018, 11:21 AM

Quote:

Originally Posted by Jeff@TopGearSolutions

You know BMS offers cowl filters that install in the factory location?

but jeff, if you are building a rad rod, you dont buy parts off the shelves

u hack and glue parts together

Jeff@TopGearSolutions · 05-15-2018, 11:25 AM

Quote:

Originally Posted by shanker604

but jeff, if you are building a rad rod, you dont buy parts off the shelves

u hack and glue parts together

Haha ok. Just making sure.

WhatDoIPutHere · 05-17-2018, 07:57 PM

This is great, I wish I thought of this instead of buying some from bms

These DIY things always seem to be more fun too

Emilime75 · 05-17-2018, 08:25 PM

Quote:

Originally Posted by WhatDoIPutHere

This is great, I wish I thought of this instead of buying some from bms

These DIY things always seem to be more fun too

Yeah, well, some things should just be bought. No offense to the OP, it's great that people try stuff like this and post it for the world to see, but...

studio54 · 05-18-2018, 05:56 AM

Personnaly, i just leave the cabin filter plastic housing with the filter but with the cowl removed... so 4 screws instead of 6.. it hold very well.

Benefits : you can work easily in the engine bay, removing the filter housing is 2 minutes..

It's just maybe a lil more quiter than BMS cowl filters in the cabin but way louder than with the cowl.

Emilime75 · 05-18-2018, 07:15 AM

^this is what I do, as well.

Hannibal4444 · 05-18-2018, 05:13 PM

Thanks for the idea and fun DIY! Came out better than just leaving the filter housing on there. I tried to make it as symmetrical as I can, but it's not perfect. I ended up painting it to get rid of the white plastic marks after trimming it. I also painted the cover of the box (top left of the engine) since I had extra paint.

fozzydj · 05-25-2018, 10:51 AM

Quote:

Originally Posted by Hannibal4444

Thanks for the idea and fun DIY! Came out better than just leaving the filter housing on there. I tried to make it as symmetrical as I can, but it's not perfect. I ended up painting it to get rid of the white plastic marks after trimming it. I also painted the cover of the box (top left of the engine) since I had extra paint.

I like! I’m going to go back in and tidy mine up, yours look well!

Still dont know what a RAD ROD is...

scanspeak · 05-30-2018, 02:23 AM

I love these DIY solutions. Can you put up some more pics on how you made them?

fozzydj · 06-17-2018, 06:03 AM

Quote:

Originally Posted by scanspeak

I love these DIY solutions. Can you put up some more pics on how you made them?

I’ll pop some up for you when my foam air filter arrives, I’m going to swap it over from the standard cabin filter, save chopping it up

05-12-2018, 03:57 PM	#1
fozzydj DIYer, 335i N54 lover 70 Rep 173 Posts Drives: N54 BMW 355i SE 2007, 148,000 Join Date: Jun 2015 Location: Leeds, England, UK iTrader: (0)	Do it yourself cowl filters What does everyone think? Got bored today so grabbed the junior hacksaw and set about my pollen filter housing 😂 not the neatest of jobs, Im going to revisit and tidy them up when Ive got a spare 30 mins. Used the OEM pollen filter and pre fabbed it to fit __________________ Fozzy BMW 335i BLACK E92 SE 2007 158,000k Bilstein B3 suspension, Catless downpipes, Turbonetics intercooler, MHD stage 1
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05-13-2018, 12:30 AM	#2
Emilime75 Colonel 1209 Rep 2,476 Posts Drives: 2010 335i E92 LeMans Blue Join Date: Dec 2017 Location: Merica! iTrader: (1)	You cut the stock filter to fit in the opening? Pretty sure the point of the BMS filters is to keep water from entering the cabin with the rubber edge they come with.
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05-13-2018, 09:35 AM	#3
fozzydj DIYer, 335i N54 lover 70 Rep 173 Posts Drives: N54 BMW 355i SE 2007, 148,000 Join Date: Jun 2015 Location: Leeds, England, UK iTrader: (0)	Yes, I left the upper part of the housing overlapping this to direct water off the filter
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05-13-2018, 12:20 PM	#4
White330 Second Lieutenant 31 Rep 221 Posts Drives: From the passenger seat Join Date: Jun 2014 Location: Rescue iTrader: (2)	Do you have any issues with the oem filter falling in? Or are you using some sort of adhesive to keep it in place? I did this a little while ago and had that issue
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05-13-2018, 03:36 PM	#5
Silent9n54 Captain 574 Rep 940 Posts Drives: 2007 E92 335i Join Date: Jul 2017 Location: Vancouver, Canada iTrader: (0)	i guess it looks good if you are going for a RAT ROD look
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05-15-2018, 08:18 AM	#7
Bobby_Sardells First Lieutenant 11 Rep 371 Posts Drives: 2017 BMW M3 30 Jahre Join Date: Aug 2011 Location: Toronto, Ontario iTrader: (0) Garage List 2017 BMW M3 30 Jahre [0.00] 2011 BMW 335i xDriv ... [10.00]	Cowl filters are only $60 at Burger Motorsport!
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05-15-2018, 08:48 AM	#8
Jeff@TopGearSolutions 3441 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	You know BMS offers cowl filters that install in the factory location?
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05-17-2018, 07:57 PM	#11
WhatDoIPutHere First Lieutenant 58 Rep 360 Posts Drives: 08 335i Join Date: Oct 2017 Location: Los Angeles iTrader: (1)	This is great, I wish I thought of this instead of buying some from bms These DIY things always seem to be more fun too
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05-18-2018, 05:56 AM	#13
studio54 Captain 201 Rep 713 Posts Drives: n54 Join Date: Feb 2017 Location: belgium iTrader: (0)	Personnaly, i just leave the cabin filter plastic housing with the filter but with the cowl removed... so 4 screws instead of 6.. it hold very well. Benefits : you can work easily in the engine bay, removing the filter housing is 2 minutes.. It's just maybe a lil more quiter than BMS cowl filters in the cabin but way louder than with the cowl.
	Appreciate 0 Quote

05-18-2018, 07:15 AM	#14
Emilime75 Colonel 1209 Rep 2,476 Posts Drives: 2010 335i E92 LeMans Blue Join Date: Dec 2017 Location: Merica! iTrader: (1)	^this is what I do, as well.
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05-18-2018, 05:13 PM	#15
Hannibal4444 Private First Class 27 Rep 144 Posts Drives: N55--E93 6MT Join Date: Mar 2016 Location: San Jose, CA iTrader: (0)	Thanks for the idea and fun DIY! Came out better than just leaving the filter housing on there. I tried to make it as symmetrical as I can, but it's not perfect. I ended up painting it to get rid of the white plastic marks after trimming it. I also painted the cover of the box (top left of the engine) since I had extra paint. Attached Images
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05-30-2018, 02:23 AM	#17
scanspeak Lieutenant 354 Rep 511 Posts Drives: BMW E92 325i 12/2007 Join Date: Apr 2011 Location: Melbourne, Australia iTrader: (0)	I love these DIY solutions. Can you put up some more pics on how you made them?
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