Whats the better Exhuast System?

had a mgnaflo installed today w/ duel pipes turned out behind each rear mudgaurd, used Trd tips on both. Looks great and sounds awsome. Wanted to put an x pipe with double mufflers an pipes, bit could not do it without voiding warrenty. After warrenty is over I will add.I was actually supeised that I did feel a little differance in power At mid range, not slot but some. No differance on take off or top end. I really did not expect any increase. I do like that it is a little quieter but deeper sounding that the flowmaster 40 ( this is compared to my dads toy truck)

 

Did you see any significant performance increases with the Dynomax Ultra Flo? I'm installing a Banks Monster Exhaust and I was thinking about installing this muffler in place of the Banks. Do you think it would make much of a performance difference between the muffler the Banks exhaust comes with or the Dynomax? Thanks...

 

If you are installing a full kit or cat back from Banks- You are prolly better off keeping the same muffler in there.
If you've got access to a dyno-try it out with both mufflers and let us know what you find!!

 

I listened to them all, I like the Borla the best. So that's what I got.