I have a 04 Neon sxt, with some mods done to it, I currently have a 2.5 inch exhaust system (non mandrel bend, I know its better) with a dyno maxx ultra flo round muffler, with a OBX racing header, I'm not sure if I'm getting the most power from my system, does anyone know a better muffler but one that doesn't sound like a angry bee in a bean can?

 

borla split rear

 

The muffler won't give you enough power to notice.

 

Mopar Performance, Borla and Dynomax are very good. I haven't any experience with a Flowmaster on a Neon, but I've heard from some that have it on their's and really like it.

 

I say a dual cat-back exhaust system made my flowmaster i have on my neon and its amazin but they dont add much power.