the other option is to just drive the Beast to the muffler shop. When we put the Headers on my older brothers Ghia, me and Dad took it to the muffler shop about 10 miles up the river from us, I followed him in his truck that has a straight pipe on it (diesel) and heard the little 302 sing the whole way up the road, it's really not that loud, providing that's what you did or have going on, besides it'd be real fun to drive with open headers, hehe