Anybody have a pic of how the inside of the oem mufflers look for the 5.7 3rd gens? Im looking to upgrade to a 4th gen muffler and found a pic of that one just need a 3rd gen for comparison.

 

I wouldn't waste your time. It's not worth the hassle of replacing oem with a diff shaped oem product. Just buy an aftermarket muffler with 3" in/out and you'll be good to go.

 

From what I remember, you can't see much on the inside. I can try to get a picture though. Here is the outside

 

here is a pic of the inside of my AT3030.


why would you want to use another stock muffler?

 

man that at3030 is small

 

yeah, not to hijack the thread but 3' in 3" out and i think the middle goes to 6". 20" long and like 6 or 7 lbs. i love it

 

+1 on the AT3030. love it as well

 

lxman1, no need for a pic from the inside, unless you want to cut it open, lol..Thats what Im really looking for..Thanks though.

Guys, Im not a fan of aftermarket mufflers due to the interior cab noise..Exception of the borla from the daytona and I should of went with that when I had the chance since it would of been minimal nose. But the reason my choice is for the 09 is I read somewhere they were more free flowing than the previous years. Now I know Im not expecting a huge gain from it but if there was a little better flow benefit from it that would be great.

Now I know Im comparing apples to oranges here since I upgrade my 02 4.7 intake manifold with one from an 08 4.7 and the result was a night and day difference. Not planning on getting the same results like that but Im assume since the 4th gen 5.7s have been bumped up in horsepower I would think they would need to do something with the muffler?

 

AT3030 owns anything else

 

The at3030 looks like a standard glass pack on the inside to me. Nothing special there.