As long as you have the right link pipe and you can position the exhaust strap good enough then you can. When I had my Gen1 I used the the link pipe from my old Blueflame can to attach an Akrapovic can, just make sure that where the link pipe attaches to the exhaust can that one will slide into the other snugly so when it is clamped up it is leak free.
Dave,on a personal note have you got another job yet? You might remember me from the WFL machines
at onesubsea, I got another job but told them to stuff it after 4 weeks, treated people like shit.