I drive an 03 f250 7.3. I was thinking about getting an exhaust, the thing is iI have very low funds, a friend told me that since it already has a 3.5 inch exhaust with no cat from factory I could simply delete the muffler. I don't plan on to many mods (have K&N drop in filter and may get a programmer soon)nor do I drive very aggresively. I don't care if it's a bit louder, just curious if it's worth it or if anybody's done it. Maybe an 80 dollar investment, please you opinions.