Yes I used a Austin can with a 2 bros link!but that's on a gen4!the next can had a 50mm opening and it worked but a complete Pia trying to buy a exhaust hanger to suit!the ARgp2 and gp2R have about a 70mm opening that slips over their link so that would be near impossible to get!Im sure gen4/5 ti header openings are the same just the gen5 headers are a bit longer!my advice don't mix and match just go with link and slip from Akrapovic,Leo,AR,Graves bla bla!there is heaps of options out there and prices range from $350 to heaps!