Quick question
 

I have solo hi flo cats and a solo cat back exhuast. If my engine is misfiring would it cause my exhaust to change sound? At idle and at accleration?

Yes you would hear a small difference in the sound of your exhaust if your engine is misfiring. I would guess it's not as deep of a sound.

A misfire is more noticeable with loud exhaust. It's not being "muffled" by the mufflers