Hello,
I wanted to share my current progress on my airbox/intake modification.
It's 3D printed it in PLA ST and designed it myself on Fusion 360 after doing some research on ideal shapes and sizes of velocity stacks.
I ended up having to make it smaller than ideal for it to fit within the filter and I couldn't really use a bigger filter as it wouldn't fit in the air box and I wanted to maintain some standard appearance from outside.
The standard manifold is used but cut down and the velocity stack slips into it.
The filter is a UniFilter 115/140.