PHATsuby - Sorry no extra knobs
ScreaminFast - Yes we've still got a few trannies left. Used early 90's Legacy diffs with the 3.9 ring/pinion gears usually go for ~$150-$200 at junkyards. The trannies we have come with the shift linkage and driveshaft.. all you need the ring/pinion gears. Sorry no DCCD equipped units at this time.
Benjamin Tang - Sure shipping to Canada is no problem and PayPal is fine as well
rexorama - There are better technical explanations in the tranny forum, but basically for the most simple swap.. all you need besides what we're providing is the ring/pinion gear for the stock rear diff. DCCD is a special type of center differential that allows the driver to control the amount of front/rear bias... we don't usually offer these type of transmissions as there are a lot of parts needed for to properly retrofit a standard WRX which makes the expense not so cost-effective.