Originally Posted by brc1989

So I have a 13 f150 5.0 and am considering deleting the resonator with an upgraded exhaust. My question is for people who have deleted it for a straight through 3"pipe did you notice any hp or mpg changes with it ? I'm not saying it is gonna be anything drastic but there's a reason ford must have made the 2.5" resonator piping that size before the 3" piping after the muffler.

Originally Posted by jevo

I put my old Raptor exhaust on my mates 5.0(No resonator, smaller back box & larger pipe all the way through).

No performance gains but it did sound sweet and was a straight bolt on.

Save your money unless you are doing it for a good wide open throttle sound alone

Originally Posted by jevo

It does sound really sweet but expect to use more fuel as you'll be 'on it' more often!

Originally Posted by FordFasha2013

Here's my 4" custom dual pipes with Borla muffler. I left resonator and flex pipe on. I like the sound. Not to loud. But nice growl.

http://youtu.be/Cu6pjT7XLQc