In California, in order to meet Air Resources Board emissions requirements, certain aftermarket part applications have been identified as replacements, and others have received ARB Executive Orders. All other emissions related aftermarket parts are for competition use only. A list of replacement parts and EO parts, and corresponding fitment is provided at http://www.kuryakyn.com/exhaust/california. Kuryakyn makes no warranty regarding discoloration of chrome exhaust products. Discoloration is a result of heat & is not a manufacturing defect.