Hey guys, I have the engine in my sig in my truck. I have 2 90 degree angle bends that are true mandrel in stainless steel at my house that my dad was going to use and just changed his mine, so I thought I might put them to use. Here is my question? I have 450hp est right now...do I go with the dual 3" system using an X pipe and two mufflers(either magnaflow or hooker) or do I just go back to the 2.5" dual using an x pipe into this mufflers. Right now I have one muffler into split duals 2.5" out the rear and that pipe is true mandrel bent as well. What do you guys think? I plan to have more power one day!! Oh, I might use cats or might not....haven't made up my mind yet though. Thanks for the help!!

 

definitely go 3" with an x-pipe.......I would run flowmasters, but whatever is your preference.

 

i would go with high flow cats to dynomax bullet mufflers with a 3" pipe sense ur pushing 450hp

 

yea....so 3"?

 

Ya 3" should give it plenty of flow

 

Just trying to make sure I have an adequate amount of backpressure for the engine.

 

an X-pipe should give u some pretty good back pressure

 

3in no cats, magnaflows....x pipe

 

Thanks for the answer guys...guess I will go dual 3" to the mufflers for right now..I will decide about the cats when the time comes i guess...still undecided about that.