1st one bolts across the trans tunnel forward of shifter (its a s14 only part). 2nd one connects to the front side of the front subframe (lower control arm area.... also a s14 only part)
edit. it is the front and rear of this brace circled in red minus the middle chit.
http://www.ebay.com/itm/ULTRA-RACING...tWHdD~&vxp=mtr