How big large are the diameter openings on both side? Im not sure I will take it just yet but I might change my mind.

 

3" I'm assuming... give or take a few tenths of an inch...

 

You dont want that one, thats the resonator for the 4.7, looks almost identical to the one that was on my hemi. You want a straight 90 with no baffling inside

 

I agree truckin151..I just wanted something better than my 4.7 hat which is hollow inside..Maybe just for kicks I would use it? But Im not even sure if it would even fit properly on my truck.

By the way I think I will get a chance to get that muffler installed tomorrow.

 

Glad it got there on time.

For the intake tube, dont put anything on that has the stock "hat". Even though it looks like a 90* bend from the bottom there are a few baffles inside that restrict and redirect the air flow into different chambers which in turn quiets things down. Now if thats what you are after well then your better off putting your own stock hat back on. Otherwise make a trip down to the hardware store and pick up a 3" 90* elbow and mate it up to the plastic ribbed stock air hose and call it good.

One last tip, changing the intake can have an affect on how the exhaust sounds so keep that in mind. I found that the tone sounds much better with a CAI than with the stock hat and box.