STILLEN 370Z Supercharger System - Announcement!!!

Kyle@STILLEN

I really don't mean to be rude here or anything but you are posting information that is only going to be misleading the conversation and confusing people.

An O ring is in reference to the general shape of the gasket. The gasket is round...in the shape of an O...O rings can come in various finishes where the actual shape will vary. Sometimes the O ring is round:
O ring.jpg

Other times the O ring has shoulders which make it square:
sqrrn.jpg

A google images showed some different styles of O rings:
o-ring.jpg

Just like there can be such thing as a V6 or an inline 6. A V6 uses a V shaped block and inline 6 puts all the cylinders in a straight line.