Just cut (saw) the muffs off...take it out and run it to see if you like the sound. If you do, weld on some nice chrome or stainless tips and you are done. Oh yes, make sure when you cut off the existing muffs that you are able to support the ends of the pipes before you drive away!!! That foot or two isn't going to change the sound THAT much. You'll be able to tell if you like it - or not.