So its been about a yr that i'be had my cre p5. I've been using a 086 pipe with a weeks #6 plug. So would a os p4 be a better plug?I've heard that the taper of the os plugs are different from the werks plug and once u use an os plug u must use one all the time or the plug won't seal correctly. Also I read that the 9886 with a 41001 is a good pipe combo. I ordered these also.