To start: I have absolutely, positively no clue about exhaust systems. With that being said.
Here are my questions. I have a 2006 f150 fx4 screw. I am going to change the exhaust to a 2.25" x pipe and 2 2.25 inch 14" magnaflow mufflers. I plan on running duals all the way to the back. My question is how do I do it?
From my research I have 2.5" pipes now. Do I reduce from my cat convert to 2.25 and then run 2.25 to muffs and then after muffs go back to 2.5? Or do I want to run 2.25 all the way to the back.
From my understanding the 2.25" will give me the better low end power.
If anyone here is a good computer guy and can draw a schematic it would be greatly appreciated.
I am a good welder and have excellent equipment. I just figured to save a few bucks and weld it all in myself.
Any question, comment or concern will be taken like a man!!

Thanks in advance

 

Good choice with 2.25", and the Magnapacks. Have it necked down to 2.25" right after your cats, best option. Just have your exhaust ran like mine and you will be set. You will want the X pipe right where both banks meet together.

 

You'll have a great exhaust system. Like Darren said, 2.25" after the cats and run 2.25" for the remainder of the system (mandrel bent). Have the X-pipe as close to the cats as possible.

 

Excellent catch, thats a definite important part.

 

Perfect, thanks guys, i will post pics next weeks. I have to go to the field for a few days.