Had no luck in exhaust forums so ill try it here...

Ok, so everyone is getting more power due to more air flow but some people don't care for the loud/v6 sound. Why not try swapping out the stock pipe...not muffler, make the diameter on the muffler a 4" and swap out the pipe to 4"... Is this dumb or would it help without having the loud v6 sound, I would be fine with more turbo hiss but would it even help??? Anyone try this?

 

dont mess with it if it's still under fords warranty... they'll see that and say that was the issue if you did have one...