Also, to make sure the system is sealed 100%, I use a thread/pipe tape on the threads of the screw-in PVC plastic fitting for an air tight seal.
I recently did an oil analysis, and no silicon issue was found in my sample. I'll have to say, as far as filtration goes, MS stage 2 intake is 100%.
Originally Posted by bm11
Bump this back up because without the spring my airbox would align much better.