I've personally done the swap and it's not all that difficult. You will need a set of 96-98 cobra fuel rails or aftermarket. Also a cobra throttle cable, and a maf calibrated for 24lb injectors. You will need to get all new coolant lines if it doesn't come with them as they are cobra specific. If keeping the coil packs, u will need a set of 96-98 cobra valve covers, or u will need to go coil on plug. If u keep the coil packs, u will have to splice the injector plugs from the 01 harness onto your 98 harness as the plugs are different, but the wires are color coded so it's stupidly easy. Solder that stuff and heat shrink it. Or if u don't want to cut up the harness they sell adapter kits for the injector plugs. U will also need a dynotune. That's all I have right now, if I think of more i'll post up.