Today I installed the fan filter retrofit kit into my revision 1.0 HL15. It was pretty easy overall. I think I spent more blowing out all the dust ahead of time. Looks to me like the filter will get some good use. 
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Did you have any more pics of the kit install? does this limit fan thickness alot?
Sure - here’s a few more. The fans are moved back and attached to a new bracket that also replaces the top front support bar on original HL15 chassis. It’s tighter than before but still simple space.
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thanks, might be about to fit my 38mm fans in there still. Notice it catching alot of dust? I was thinking of glueing really fine screen over the plastic mesh
Mine just arrived, along with a v2.0 front plate. @Vikram-45HomeLab was able to organise a white filter insert to contrast the black front plate (and it looks pretty good). Hopefully mine isn’t as dusty haha!
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I also installed mine today on my OG White HL15 v1.0!! My only “complains” (not a real one), is the screw holes now that the fans are not directly mounted to the faceplate. Might 3D-print some caps in matte white and maybe blue for the top ones 
I was also thinking about 3D printing something for the screw holes.
Let me know if you find a good STL that fits well!
Same! I probably won’t have a chance to look until the weekend.
I want to say that I managed to install the retrofit filter kit with the Noctua inlet spacers and 25 mm thick fans.
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I forgot to mention that I had to unscrew the 3d-printed fan cable holder, because the inlet spacer and the fan combined would prevent the fan holder plate to be fully inserted. This would not be needed if only the fans were installed like the upgrade manual assumes.
Thank you for posting this, I was just about to remove my Noctua spacers thinking they added too much bulk, but removing that cable holder did make it fit snugly.
Did anyone’s filter come with non-magnetic metallic “caps” over the magnets? I had to remove them to get the filter to fit on my HL15.
Here’s a view of the Noctua fans with spacers still installed.
Have you tested the difference in CFM? I have random fan filter mount between the fan and front and that reduced the air flow a lot. The retrofit kit seems to create a cap between the fan and the filter and normally would help with the CFM drop off issue.
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Yeah I got these too. I wasn’t sure what to do with them and they made the fit too tight so I just set them aside.
Nothing very scientific. Just taking the filter in and out and seeing how it feels against my hand. There’s a slight difference and that’s resulted in CPU temps being higher by about 4C.
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reduced flow of filtering process will result in slightly higher temps unless you were already over cooling. Most people undercool because of sound levels. So people with quieter fans with lower performance like Noctuas would likely see biggest temp jump.
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