Sounds like my "cold air kit", BHAF and $18 at Home Depot.

 

I would go 5". Its not but about $30 more for a 5" system versus a 4" system, and I like the sound of it better. I have seen 5" turbo back systems for as low as low about $300-320. 4" turbo backs run about 30 bucks less than that.

 

Unless I got an uncommonly good deal, the price difference is a little more than just $30. They're a more of a PITA to fit too. I've never noticed a difference in sound between my 4" and the 5" ones I've seen, they both just sound like a really pissed off schoolbus to me. Stacks sound a little different.

 

x2 on 5" thats what ill be running

 

I dont know how much you paid for yours, but I have seen 5" systems for as low as $300.

 

Like I said above, my 4" MBRP was $260 shipped, and it's a heavyass box. I doubt shipping is cheap.

 

I have used kits from Diamondeye Performance on several diesel trucks and like them. Good bang for the money.
There must be a vendor on this site deals in them.

Go with stainless in Ohio.......

 

Flo-Pro also has good prices.

Glad I don't have to worry about rust

 

I went with the MBRP 4 inch turbo back exhaust and am very happy with it. I chose the installer series that had welded hangers on it to utilize the factory rubber mounts, and it was on within 30 minutes with a lift, easiest install possible.

 

I have a "wanna-be 5" exhaust." I have a 4" turbo back from AFE with an MBRP muffler, and a rather recent addition of a 5" tail pipe section I got on ebay for $60 bucks, shipped. Looks like a 5" exhaust from the rear. No-ones the wiser. Kind of a melting pot of parts. It Works and sounds pretty cool too.