Don't waste your time or money... I installed an MSD on my 2000 RS and it will not work. Now, I'm stuck with a wiring harness that is spliced back together. The reason it wont work is there are no coil packs on the newer impreza ignitions. You have to splice in between the ignition and the coil. Maybe somebody out there has good news... That was last year and I havent seen any new developments in the ignition department.