I had them cut it into the spot where the resonator (hot dog type) one is and then reuse this also by moving it between this new muffler and the existing super drager resonator. It was a straight thru 3 inch type and it cost $170 fitted.
I know some might say that the Super drager is 3 1/2 inch so why did I go 3 inch, well 3 inch is still plenty big enough for heaps of flow (if anything 3 1/2 is a bit much) and when I upgrade the rest of the exhaust (front and cat), I doubt I'll find a front pipe or cat which is bigger then 3 inch, so seeing as it will only flow as well as the smaller link in the system -
It makes no difference to power (compared to std super drager) but made it sounds heaps better.
ps. watch where they put it because it is very tight for space
pps. sort of similar to the 3 inch resonator/muffler listed on Unique Autosports site but a little bigger.