Armytrix vs Fast Intentions
 

How does a full armytrix exhaust compare to a fast intention catback with fast intentions headers. Sound and performance wise, not looking at money.

Performance wise, Fast Intentions. It's an X pipe design as opposed to a Y pipe, allowing for increased flow. NA there won't be a major difference, but boosted, there will be. With F.I. headers, there is no comparison to performance.
Sound wise is subjective.

Sound wise and just for overall "neatness", Armytrix. Performance wise? FI.

If you want extremely loud and raspy get armytrix. If you want deep tone and loud get fast intentions with 12 in resonators and their headers, which is my setup. You could be the first guy to do armytrix with fast intentions long tubes. I know id love to hear that but m not sure if it will work tho

ArmyTrix sound is epic and hands down better, not even close.