If you want a 2.2" pulley on your 1996 you are going to have to have some extreme work done -I mean like probably close to $8g'* worth of mods, and that includes a new SC -the stock M90 probably is only efficient (with all the supporting mods) down to around a 2.7", and I can honestly say there are probably no more than 10 guys running that small of a pulley on a M90.
For a reasonable starter pulley for a 1996+ SSEi I'd suggest 3.5" with no supporting mods. If you have a CAI, better plugs (NGK TR55'* is a popular one), 180* thermostat, exhaust, and a complete tune-up you can run a 3.4". A 3.4" is common for beginner'* without any other mods, but 9 out of 10 of them are probably experiencing some not so pretty KR, where as with a 3.5" pulley they may not be running as much boost, but it is more efficient and they probably aren't getting much, if any, KR (Knock Retard).
And finally, to answer your question, www.Intense-Racing.com
is the unofficial official mods vendor for Series II cars here on BC.
Check back in if you have any other questions. You will find a wealth of knowledge is available here on BC, and there are many who are here waiting to give good advice.