Howell offers all of their harnesses with the necessary emission connectors when requested by the customer. These harnesses are considered direct replacements for the factory designs, and will be considered emmisions legal when combined with the correct vehicle speed sensor, park/neutral switch, (or manual trans calibration), catalytic converter, and vent cannister. Many older vehicles require no emmission controls to be street legal. You should familiarize yourself with your state or local emission regulations and test to be sure what you are building will be street legal. Howell harnesses have passed emissions tests in all 50 states when properly used. Their 6 Cylinder Jeep Kit is emission legal under CA EO #D452, for street use. Howell Fuel Injection kit.....81-86 CJ 258 $1,120.95 Howell Fuel Injection Kit...81-86 Calif. CJ 258 $1,220.95 Howell Fuel Injection Kit....87-90 YJ 4.2 $1,120.95 1987 to 1990 4.2L Jeep Kit Emmissions Legal $1,220.00 If you have questions you can reach us toll free at 1-800-699-5337.