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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > DIY Experiment - Dual Cone Filters in Custom Colors



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      08-15-2016, 10:59 PM   #1
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DIY Experiment - Dual Cone Filters in Custom Colors

A few weeks ago, I was reading through a thread looking at some beautiful engine bays when I was inspired to try and clean my own up a bit. My BMS dual cone filters were looking a bit dirty these days and ever since installing my amber halos, I'd thought of doing some type of amber/orange filters to break up the all black.

Here are the supplies I started with:
  • Brand new set of BMS white dual cone filters
  • RIT Liquid Dye (I chose Tangerine)
  • Green Filter Cleaner
  • Green Filter Orange Oil



I used a stainless steel sink, so I wouldn't have to worry about making a permanent mess. I also watched the video published by RIT on how to use their liquid dye, and they suggest adding a bit of salt in the hot water when dying cotton and similar materials.



After dissolving the salt in hot water, add a bit of dishwashing liquid to the mix.



Add the liquid dye. I used about half the bottle and then stirred everything up.



Slowly submerge the filters into the water and dye mixture until they're sitting on the bottom.



Do the same for the second.



Keep checking in on the color of the filters and remove once you get to a desired shade. After letting all of the dye/water mixture drip off as possible, I transferred the two filters to the other side of the sink. To ensure no staining, and to stay on good terms with my girlfriend, I gave the sink a good scrubbing with a soap pad.



Rinse thoroughly. This may take a while before you see the bleeding colors stop dripping. Eventually the water will run clear though.



I then added a bit of dishwashing liquid to the sink, refilled with fresh water, and gave the filters a good cleaning, just as I would with a dirty set.



Place on a towel you don't care about and let dry. I sat mine outside on a hot summer day to speed up the process.







From there I applied the Green Filter orange oil so I wouldn't compromise the intended color of the filters.



Add the anodized black aluminum couplers and they're ready to install.



And the final product with black DME cover and brake fluid reservoir:









I can't see how dying the filters, cleaning them thoroughly, and re-oiling them would have any negative effects. RIT also comes in about every color imaginable, so the possibilities are endless.
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Last edited by chadillac2000; 08-28-2016 at 05:59 PM..
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      08-16-2016, 12:15 AM   #2
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How many hours did it take to make your filters look just like the readily available red filters?

Cool idea though.
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      08-16-2016, 09:58 AM   #3
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Quote:
Originally Posted by Yournamehere90 View Post
How many hours did it take to make your filters look just like the readily available red filters?

Cool idea though.
Admittedly enough, the final product did come within a few shades of the red filters that you can order directly from BMS. Still not close when sitting side by side though. If I were to do it over again, I'd probably use about 1/4 of a bottle of the dye to obtain a lighter shade of orange.

And to be honest, only about a half hour of actual work involved if that.
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      08-16-2016, 10:00 AM   #4
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I think it looks good. Obviously could do any color.
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      08-16-2016, 11:44 AM   #5
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Maybe you could bleach them
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      08-16-2016, 12:34 PM   #6
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Quote:
Originally Posted by Yournamehere90 View Post
Maybe you could bleach them
I see what you did there.


OP, looks good. As soon as I read the title I thought Id like to have some orange filters.
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      08-16-2016, 12:54 PM   #7
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OP not a bad idea
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      08-16-2016, 01:17 PM   #8
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Quote:
Originally Posted by chadillac2000 View Post
RIT also comes in about every color imaginable, so the possibilities are endless.
For those of you who have looked and are disappointed not to find RIT in electric lime green (which would really pop in the engine bay), you can combine a 4:1 ratio of RIT lemon yellow with RIT aquamarine.

Source: young daughter with electric lime green fetish
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      08-19-2016, 04:24 AM   #9
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Good effort OP
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      08-19-2016, 01:23 PM   #10
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Quote:
Originally Posted by Yournamehere90 View Post
How many hours did it take to make your filters look just like the readily available red filters?

Cool idea though.
Douche.
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      09-02-2016, 11:39 AM   #11
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UPDATE: Cleaned up the engine bay further, tucked wires away, added an RB External PVC and high/low catch cans. About 1,000 miles on these filters so far and no issues, no color loss.

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