Diesel dynamics has their own web-site. also, BD performance sells 4" pipes. If you check out the TDR (www.turbodieselregister.com) therer are many diesel suppliers that can hook you up. Remember, our v-10's have much more in common with the diesels than the 5.9 2500 or the 1500.

I went with the 4" because no one in my area had one. Actually, when I talked to a few suppliers, they didn't know of anyone who had the 4" on a v-10. i wanted to keep it simple. Dual pipes just have that much more to rattle.