JonathanN
New member
I like the 4" we put on our 6.4L... the Diamond Eye fit much better than the MBRP I had put in another truck. I'd like to compare it to a 5" as well. I still can't get over how quiet the truck is. It's straight-piped and is quieter than my 7.3L is WITH a muffler! Wonder what a 5" would be like on my old 7.3L?