im swapping a gsr motor into a 99 civic ex
for thr drivers side, what engine mount and bracket do i use

do i need the si bracket, and can i use the stock oil filled mount or is it the same as the si's

 

you need 99-00 SI rear bracket
SI/GSR front torque mounts

if you want to use the stock gsr mount on the timing belt side you need a hasport or any other brand kit that uses a different bracket.
you can use the stock sohc upper tranny mount and timing belt mount. If you have the 99-00 SI block mount on the timing belt side that is