what would be the correct size of tubeing going into and out of muffler, i have the stock tubing on it and all i want to do is swap the stock muffler for a new muffler. some people have told me that it is 2.5 in&out and some have told me 2.25.
it would need to be the centered in/out let, am i correct?
and finally to increase HP/TQ along with MPGs, which would be better a Flowmaster Delta Flow 50, or a Magnaflow 5x8 Oval.
does anyone know which lenght for the Magnaflow would be the easiest to put it; if it is too short i have to add on pipe, if it is too long it will not be as loud.