i have all stock piping on my 1990 xj besides the flowmaster super 10. there is a 2.5" pipe connecting the super 10 to the cat, then from the super 10 is 2.25" piping going to the rear. when i get above 3k rmp is sounds completely stock. and even from idle to 3k rmp its not as loud as i would like it to be. Im wondering what i can do to make it sound louder? do i replace all the piping with 3" piping or what?
Flowmaster super 10 isnt as loud as id like
