FastTaco

What flows better? One huge pipe out the side looks good, but blowing smoke out both sides would be cool too and you don't have to pass on the left to blow someones eardrums out.

Pooter

I prefer the look/sound of a single 5" pipe, 6" tip, if im going to have it exit under the truck
Above, dual 6" mitres(or 7" if you have the gr$$n)

wap

Both will flow more than enough, its all about the sound and look you want.

Cruizer

I am looking at doing the 5" downpipe split to dual 4" with a set of 4-6x24" tips. The goal is to get the sound of 6" dual stacks without having to go through the bed. I think it is going to look and sound good.Holdup now is finding a chesp aluminized kit.

FastTaco

Thanks guys. I'd like to find an muffler back dual 4" setup. That way I can hook right on the straightpipe with the wye and run it out back. So I don't have to buy a kit with a downpipe and muffler that I'll never use.

Patrolman808

Personally I only like duals on V8s. Just my .02 though.

JohnDeereDodge

How much of a differance would their be as far as sound and EGT temps from the 4" exaust from the turbo thats on thiese trucks stock as to a 5" setup from the turbo as to a 6" setup from the turbo all in a straight pipe no cat no muffler scenario?

3500CTD

I love the sound of my 5" w/muffler compared to 4". Nice and deep...Thats just me though. The bigger the better right?