Why not make one? or?
http://www.ebay.co.uk/itm/Exhaust-Bracket-Silencer-Mount-6-Universal-Stainless-Backbox-Hanger-Strap-Bar-/251182954317?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item3a7babb74d" onclick="window.open(this.href);return false;
I made mine using normal bolts an a strap like this..
http://www.ebay.co.uk/itm/Exhaust-Band-Strap-Bracket-Rivet-Band-UNIVERSAL-350mm-/290592495440?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item43a8a99750#ht_1749wt_1043" onclick="window.open(this.href);return false;