i have a 2000 civic lx 4 door, swapping a b16 94 in car. Do i use the factory mounts, or use the mounts from the motor and the b16 donor car?

 

You'll need the rear motor mount bracket and the driver side upper mount (the one that bolts to the block) from a '99-2000 Si. The front lowers can be from any '94-2001 Teg, DOHC VTEC Del Sol, or '99-2000 Si. You can use your current upper tranny mount off your D16 and also the driver side top apron (piece that attaches the chassis mount to the motor). It's pretty simple.