Also, the reason there can be different orders is due to the fact that 1&3 fire at the same time, as do 2&4, in case you weren't aware.
'95 GSX - New motor/turbo going in... '95 TSi AWD - For sale...buy me! '03.5 MazdaSpeed Protege - Stock daily driver '97 CBR 600 - Purple is a real man's color