Originally Posted by
Subcompact Culture
I also am using an ABS pipe. It has a 2" ID and a 2-3/8" OD. Thanks for the PN. I may need to get an adapter, but I'm not sure I like the idea of clamping the filter to a silicone adapter vs. directly to the pipe. It looks like K&N offers a number of filters with a 2-3/8" inlet diameter.
The pipe I got is closer to 2-1/4" OD (2" ID), so I'll be able to use a 2-1/4" to 2" silicone coupler to step it down to the MAF adapter (then a regular 2" 90° silicone bend from the MAF adapter to the throttle body). Doesn't look like they offer a 2-1/4" ID Filter so I may need to cobble that part together (like a ~3" piece of alum pipe that stays with the filter and attaches to a 2" to 2-1/4" coupler to the pipe).
The outlet of the filter is pretty soft rubber, so I doubt it'd stay seated if you coupled it directly to a silicone coupler -- You'll probably need to use a small section of pipe or put it directly to the ABS pipe.
I also toyed with the idea of 3D printing a whole airbox assembly that would hold the stock filter AND fit in that space next to the radiator... Probably should brush up on my CAD skills first.
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