4.7l with mods exhaust size

[adamh3844]

I currently have an '02 ram 1500 4x4 QC and have a few mods in it already.
Airram Intake Scoop
Airram Power Wire
Superchips F5
'02 GC TCM 545rfe

I plan on doing the '08 intake manifold and 72mm Throttle body mods
I would like to put an exhaust on after the Catalytic converter and was wondering the size.
It will be one pipe into muffler and 2 coming out. I was wondering the inches would be. I don't want too much flow by doing 2.5' dual rear exhaust. Wasn't sure if the size of exhaust after the Catalytic converter was as big of a deal as the headers are.
Any information helps.
Later planning on adding 4.56s gears

 

[mwclarksr]

Nothing over 3", larger than that and you will lose power and fuel economy. Keep it around 2 1/2 - 2 3/4 and you'll be doing great.

 

[HemiLonestar]

I currently have an '02 ram 1500 4x4 QC and have a few mods in it already.
Airram Intake Scoop
Airram Power Wire
Superchips F5
'02 GC TCM 545rfe

I plan on doing the '08 intake manifold and 72mm Throttle body mods
I would like to put an exhaust on after the Catalytic converter and was wondering the size.
It will be one pipe into muffler and 2 coming out. I was wondering the inches would be. I don't want too much flow by doing 2.5' dual rear exhaust. Wasn't sure if the size of exhaust after the Catalytic converter was as big of a deal as the headers are.
Any information helps.
Later planning on adding 4.56s gears

Well a 2.5' (that's two and a half foot) would be waaayyyyyyy too big. Now a 2.5" (two and a half inch) would be the best size for a baby 8.

 

[mwclarksr]

Well a 2.5' (that's two and a half foot) would be waaayyyyyyy too big. Now a 2.5" (two and a half inch) would be the best size for a baby 8.

I caught that, but wasn't going to point it out but I didn't want the OP to feel silly, but you kicked the door down on that one, lol. Which is why I put " after my numbers.