How many are running true duals?

[texasbred]

How many guys are running true duals on their LS engine? I had always heard that these engines lose HP from true duals. Is that true? The reason I ask is I have a Tahoe and when I perform my swap, I'll have to redo the exhaust.
Well because I have a 2dr I can run a single pipe down each side behind the long tubes. I will be using high flow cats and magnaflows.

Will it rob horsepower? Would it be better to do a y-pipe, or just do the above and connect an H or X pipe? Or just run without an H/X pipe
The engine will have a mild cam and mild headwork, with the normal bolt ons.

[lo-lyf]

I have a dual in/out magnaflow with a built in x on mine, I saw the same times at the track as I did with the single flowmaster. I'm slower than molasses anyway though.

[skeet]

i run 3" without any type of X or cross ( muffler ) true duals, but with your hp i would go no bigger than 2.5 in pipe size but it would be cheaper if you can use pass. and driver side, plus its less bending or less bends

[TurboMic]

i love my duals... added tons of power....

[Botlfed]

i have dual 3 inch magnaflows

[DBRODS]

I have dual stages also tons of power too!!1

[txarkitekt]

...i would go no bigger than 2.5 in pipe...

Exactly. If you want true duals, only go as big as 2.5" and run an x-pipe. If no duals, merge the exhaust into a 3" y-pipe and run a single 3" pipe back...

[texasbred]

duals it is then, I can just run them straight back from the headers. a single 2.5" on each side.
That will make the exhaust installation a whole lot easier
thanks

[Marcus]

duals it is then, I can just run them straight back from the headers. a single 2.5" on each side.
That will make the exhaust installation a whole lot easier
thanks

I'd add the x pipe.

[Botlfed]

I have dual stages also tons of power too!!1

yea me too, it adds alot of power