On Monday 1/31 I had exhaust put on my 03' FX4 w/ 5.4. I had them cut off the factory muffler and y it out the back w/ 4" x 18" tips at a 45* angle. I do not have an aftermarket muffler becouse they are way to quiet. My setup soods good but not loud enough for me. There is about 4 to 5 ft. of 3" pipe between the factory y and the new y and I was wondering if it would be louder if there was only a foot or so of 3" pipe between the 2 y's. lf that would not make it any louder than I might consider getting some hi-flow cats. I dont want to mess w/ anything between the engine and the factory y unless nothing else will make it louder.

 

i got true duals on mine better flow not loud but i dont want something incredibly loud so it attract the police to whenever 'm going fast. but if u want something fast go with some dual bullets. and dump then right after the cab.

 

lose the cats or go with 2 high flows

 

just get some long tube headers and run open headers...

 

hi flo cats with true dual straight pipes off that. Should sound good!

 

get some custom pipes done that will exit out the top of the hood get a nice fire works show going on... j/k but high flow cats will make a pretty good sound difference

 

so yall dont think that having about 1' of single pipe instead of 5' between the 2 y pipes will make it louder. It would be more duel pipe and less single and seems like it would less back pressure and be a little louder.