vozaday

At least if you do go the route of a custom tune there are a few people that are now tuning with the diablo sport.

vozaday

A little light reading.

http://www.f150ecoboost.net/forum/13-f150-ecoboost-performance/7935-turbo-exhaust-theory.html

Aggie15

My straight pipe is 3" from the flange back. I just bought some pipe from jegs and a turn down tip.

boomer85

Thanks for the read, I learned quite a bit there and it sounds like 3"+ is the way to go for me thanks. How does your 3" with the turn down sound?

Aggie15

Loud as hell, especially cause I have the 3" y pipe. Sounds awesome cause you can hear the turbos whistle like crazy.

boomer85

Yea I like the whistle.

boomer85

Did you just dump it past the rear end? Wonder what that would sound like I'm completely stock exhaust wise

Aggie15

I ran the pipe just to the muffler hanger and then the tip sticks out past that so it ends about a foot before the axle. It drones a bit but you can weld a j pipe on if it bothers you. The nice part is you can do it yourself with band clamps if you don't have a welder.