I have a 00 Z24 and im looking to upgrade the stock coils. I think one of them is miss firing. Where can I get something besides the stock coils for it. Like accel or MSD.
 
your stuck with stock coils unless you do the 2.2 coil swap. 
click me
If you do a forum search on it you should be able to find everything you need to know about it. 
or click here
EDIT*  This sould be in the Maintenance or Performance forums