To speak on behalf on my own experiences, I would like to add some input to this thread. I bought and installed my MS Stage 2 Kit about a month ago. At first I installed the plastic pipes and saved the filter for last. I watched the youtube video again and decided to start with mounting the filter into the box FIRST.
- On a side note, my MS Stage 2 Kit came with a smaller plastic pin to hold the filter into place.
Once the filter was fitted into the box WITHOUT the plastic piping connected the filter fit snugly in the box. I then installed the plastic piping along with the clamps.
The noise added is great, and I def. felt some more power. Could this kit have been cheaper? I think so, but I'm happy with my purchase