Maybe you guys can help. I have a 4.2 and I installed a flowmaster SI/DO with outlets in front of passenger rear wheel. I love the sound outside BUT the interior resonance is sometimes annoying. I am wondering if there might be a way to add something like a muffler insulation/wrap or maybe someone else here has had this problem and found a cure.
As I said most of the time I love the sound but there is times that I would like to have conversation with my lady and it is a PITA!
HELP!!

[This message has been edited by GR Swaney (edited 12-25-2000).]