Corsa Xtreme mufflers...

Corsa doesn't sell their stuff individually or at least they didn't when I had their system on my 96 Vette.I tried everything out there at much expense and nothing was quiter at cruise with no drone than the Corsa.If it were me I would keep an eye on Ebay for used Corsa systems with mufflers that are close to your needed size and go that route.