'05 durango just wanted to get some input as to what kind of performance exhaust system to get? I have a K&N intake on it and a superchip.

 

Sutpermn:

There are several cat back type systems on the market. Actually though, unless you go with some type of a true dual system, the oem pipes and muffler flow pretty well.

The only negative I have seen with the oem system is a resonance which can be annoying in the 1800-2200 rpm range. Folks who have gone to aftermarket systems say that takes care of the resonance.

Don

 

i have flowmaster duals same side from the cat back and sound good works well with my k&n 57 series cai and superchip

 

did you see an increase or decrese in mpg?

 

i have a magnaflow 15830 cat back and a K&N cai on my hemi d and im getting 15.5 mpg's city and 13.9 hauling my boat!!

 

Are those numbers what the Durango's overhead tells you, or did you hand calculate those?

 

overhead why? how much are they off by??