high flow exhaust

[09 arctic cat m8]

Same tubing just want to replace it with a high flow cat and high flow muffler on a 5.7 hemi will this help mpg? thanks

 

[growly]

Just get rid of the muffler,it'll sound like your running glassspacks. Don't know about MPG though,what year truck?

 

[brutematt750]

It might help a little , if you can keep your foot out of it. It will be hard to do with the new exhaust sound ... Haha


Sent from my iPhone using Tapatalk while working extremely hard

 

[edge rmk700]

muffler will help with sound,leave the cat will not help at all,mileage should improve as long as you keep your foot out of it

 

[09 arctic cat m8]

It would be going on a 2007 dodge 2500 hemi and just looking for a little extra mpg, what does everyone recommend for a quality high flow muffler. Thanks.

 

[growly]

magnaflow