Corksport has an exhaust for the MSP that replaces both cats for only $389!! ID is 2.4". Spool better lower their prices on their shorter exhaust!!
www.corksport.com/main.php3?primNavIndex=0&mainURL=/store/index.php3?cat=220745
www.corksport.com/main.php3?primNavIndex=0&mainURL=/store/index.php3?cat=220745