What I found was what I was hoping for: a top-mounted cold-air intake. Instead of the common box-type air filter that most naturally aspirated engines have, the plan was to open up the hood scoop and relocate the air box to sit right underneath it, drinking in plenty of cool air for the EJ25 Boxer engine to feed off of.
The guys on RS25.com had been using a coupler to connect the upside-down turned air box receiver to the exhaust manifold and re-route the air lines off of the air box to complete the setup. However, the star of this mod is a 2.75" to 3.0" pipe with a 45° bend... not exactly something you can find at a local hardware store. So I took what parts I had and attempted to build my own solution to it.
While it's not perfect (and I'll probably end up ordering that darned part anyways) the setup works! I opened the hood scoop cover, mounted the panel air filter (which desperately needs cleaning) and took it for a spin. Almost instantly, I noticed a change in response. The EJ25 was breathing much easier and, as a result, had some nice high-end torque response. So far so good!
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