Hi, i have an 1983 Goldwing Interstate. The header on the right side has a hole right where the aftermarket slip ons attached. One guy has offered for $200 to take the slip on off, weld the hole and put the pipe back on. Do you know if i can find the original pipes on the used market anywhere and would they be cheaper? the original owner didn't rejet the bike so these aftermarket pipes are causing some minor issues.