twitchee2
Member
I have a line on a borla 40085 muffler. its a XR-1 sportsman racing muffler my buddy got for his camaro but it wont fit without some modification with a hammer so it just sat for a couple yrs. Its 5in round x 15 long with a 3in in and out. i would set it up as a catback system but will having 3in pipes out back cause power issues? I would be keeping everything stock from the headers back until after the cats. If anyone has some input on that it would be great.