I finally installed my Karb OEM airbox 2 weeks ago after running my Eventuri intake for a few months to get acquainted with the sound (other mods: euro headers, X Rasp section 1, stock section 3). I wanted to make sure my installation went correctly since I had to use worm clamps on the manifold side and didn't want to snug up too much on the carbon fiber piece so with the help of a friend we did a smoke test. Found out in the shared video that both bottom corners of the airbox itself leaks, granted the engine doesn't throw any lean codes but I feel like there's a slight hesitation/choke in the upper rev range (no custom tune other than CSL tune to accommodate for the headers). I wanted to see if anybody else have ran similar tests and if I should should reach out to Karbonius themselves? Another question I have, what type of impact would this have with unmetered air being sucked in, if any?
https://www.youtube.com/shorts/ZXj6H5ul5HM