WOOOOOOW that took me back to my cheapo days. I used PVC pipe on my first Supe, I had those suckers powder coated black LOL and I'll tell you what I never popped one off....EVER. It's cheap and EFFECTIVE, at least for me it was. I was put down by pretty much every dude at any car meet too but meh.....last I checked the pink slip had my name on it not theirs. I'm a bit skeptical if it will work with the pressures being put out from your blower though.
Is it possible to tilt forward? Air will glide through it much easier in that position. When you get all that stuff done make sure you have all the undercover guards bolted up to make sure air gets pushed through it. Air takes the path of least resistance and it ain't your intercooler
Edit: I'm still super cheap today