Honda Fit 2015 MAF Adapter for CAI/SRI

thingiverse

This is an adapter to hold the MAF sensor for the 2015 Honda Fit. Instead of replacing the stock airbox entirely, this is designed to replace the top part of the airbox that holds the MAF sensor so you don't have to cut your stock airbox. The other end is 3 inches to fit standard pod air filters. Use 3-inch hose clamps on both ends. The stock bolts should fit in these holes. I would recommend against PLA. It'll be a tight fit, but if you put the adapter in the filter then move it back out once it's in place, it should work like in the picture. You should not need any additional couplers or gaskets because the tube that the top half of the airbox leads into has its own gasket. I printed this in PETG and it seems to be holding up well after a few months. I also live in socal. Edit 12/20/2020: I took this out to clean the filter and noticed that the narrower end deformed a lot so don't tighten that side too much; just enough so that the hose clamp and gasket doesn't move much with respect to the adapter. I also updated the design to strenghten the bolt holes as the ones on the previous version (v3) were very weak. Now (v4), you should be able to move the bolts in and out to thread the holes (before installing!).