So, I'm not really too certain if it makes more power, but then again, I reset the ECU by pulling the negative battery terminal and just ran it once around the block, but it's definitely louder, and seems to have better throttle response. Over time I suppose I'll see if it has made an improvement over stock.
Used a 12" section of 3" aluminum tube, but had to cut off a couple inches for the filter to clear the hood prop. Also used two silicone reducers, 3"-2" and 3"-2 1/2", with a K&N cone filter with a 2 3/4" flange, and Daox's custom MAF sensor housing. Really cool seeing the 3D printed part!