ok, here is the detail...
the length and the width of the seats is almost the same with stock seats...
what i do is, unplugged the seats airbag clip, and then remove the seats. i will post more pics tomorrow...
then i test fit the wrx seats... i then create 'L' bracket to connect the stock wrx bracket to the screw holes in the body... then i weld the 'L' brackets to the wrx seat brackets...
then i use the seat belt clip from the stock seats, remove it and put it on the wrx seats, then put the sensor cable for the seat bealt indicator back...
then for the airbag, i put resistor in it... cant remember the value, but i will double check... i do this so the airbag warning light turned off
because of the 'L' brackets the seat ended up sitting 5mm higher than the stock seat...
i recommend to modify the aftermarket seat bracket and leave the original seat, bracket and rail untouched... just dont take the risk... coz, any mistake on modifying original seat means not reversible...
and for TMG3... u smell chop hey? say whatever u want man... its a free country

but fyi, the trim didnt even match the stock trim... the stock trim is stripes and the wrx seat is small dots and mesh.