Ask someone else if you don't believe me, or better yet try the search feature.
See ya
BTW you must be one of those guys who can not admit when he is wrong, ever.

 

i have the magnaflow lightning style exhaust. my factory wheels which i run only in winter have a slight bubbling of the clearcoat from the exhaust but my chrome summer wheels have not been affected.

 

you want loud ditch the cats.as far as the cel get some mil eliminators.i removed all my cats from my mustang and put mil eliminators and no light and the car was so freaking loud!screw cats and screw power.you want more power buy a blower or put a nitrous kit in that truck and as far as fuel efficiency its a truck!as far as a muffler its all you.flowmaster,magnaflow whatever floats your boat.maybe even go true dual and ditch the cats?