Emissions Notice to Khrome Werks Customers in California

California regulates motorcycle aftermarket parts that have the potential to impact emissions. In many cases, the sale and use of emissions related aftermarket parts on motorcycles is prohibited unless it is either a "Replacement Part" as defined by California, or the specific application has been granted an exemption as reflected in an Executive Order ("EO Part.")

Replacement Parts

“Replacement Part” means any aftermarket part intended to replace an original equipment emissions-related part and which is functionally identical to the original equipment part in all respects which in any way affect emissions (including durability), or a consolidated part.

These parts are appropriate for sale and use on motorcycles used on or off the public highways. For aftermarket exhaust and other parts, there are two applicable scenarios:

(a) If the motorcycle’s stock exhaust system does not contain a catalytic converter, then an aftermarket exhaust part is a replacement part as long as the part does not remove or replace any emission control equipment originally attached to the stock exhaust system, such as oxygen sensors, and it does not require tuning of the fuel system to be used.

(b) If the motorcycle’s stock exhaust system contains a catalytic converter in the manifold section of the stock exhaust system, then an aftermarket muffler positioned downstream from the catalytic converter (i.e. cat-back) is a replacement part as long as the part does not remove or replace any emission control equipment originally attached to the stock exhaust system.