http://rustysoffroad.com/mm5/merchan...egory_Code=MSD
Check out that link it's got the ignition system, rev control, coil, and high performance wires for cherokee's. You can get the msd 6 offroad unit and contact msd for the jeep adapter and use it to connect throughout the system. When I get the money up I plan on getting that so it's one more thing that's waterproof under the hood.