Hey guys, new to forum and to modern muscle cars (only dealt with GM A bodies, really). My friend and I are planning a 500 HP 07' Mustang GT. I've narrowed it down to the Flowmaster Super 40's or 44's (I have 40's on my F-150 and they work great). My question is concerning the pipe layout, cats and headers.
- Which configuration works best? X, H, or straight?
- For 500HP, is it recommended to keep the cats. I know most muffler places won't remove them, but I have a guy that will gut them.
- Finally, which headers work best? Short or long?