locate your stock coil and replace it? should be a simple bolt-up. but i dont know if a coil off a CRX is interchangeable with an MR2. GMs for example ( ) use a two-connector harness so you cant just use a blaster SS, you have to use a GM Blaster SS coil. call up MSD and see if theyre interchangeable, find out where your coil is and replace it