I found an awesome setup that i did myself on my 05' 5.4. It makes it nice having a mig welder... I placed an X-pipe right after where the stock Y-pipe was located, and then i ran back to two dynomax bullets, and then out the rear sides at an angle through 4X24 tips! The sound is awesome, and i noticed a low end torque gain, which i felt that i lost from my old SIDO flowmaster. I will post pics as soon as i get them!

 

Congrats! Enjoy!