I am in the process of trading in my 04 FLHT for a 2011 FLHX which is completely stock. I order the Big Sucker and PCV. But I am planning on using my 3.5 Rinehart slip ons. I was told that because of the CAT the bike wouldn't run right and will turn my mufflers a goldish color which I thought had tot do with bad tuning.

Has anyone ever experiecned this?