ZR-1 Net Registry Forums - View Single Post - Catalytic Converters for CA '91 ZR-1

Z51JEFF · 2 Weeks Ago

The State has some help when it comes to failed smog tests and defective cats that are no longer available. I've seen where one owner got a deferral from the State where he no longer had to test the car. And something to keep in mind installing used cats on a car is illegal,that right there helps owners as far as proving the cars are no longer available. The State can't legally out law a car that was built to Federal emissions standards at the time of manufacture. The State of California has lowered the max Nox levers over the years. When I bought my car back in 2007 the max Nox level was 702,the State has lowered the max Nox level to 502.

2 Weeks Ago	#10
Z51JEFF Join Date: Dec 2007 Location: Fremont,Ca Posts: 3,046	Re: Catalytic Converters for CA '91 ZR-1 The State has some help when it comes to failed smog tests and defective cats that are no longer available. I've seen where one owner got a deferral from the State where he no longer had to test the car. And something to keep in mind installing used cats on a car is illegal,that right there helps owners as far as proving the cars are no longer available. The State can't legally out law a car that was built to Federal emissions standards at the time of manufacture. The State of California has lowered the max Nox levers over the years. When I bought my car back in 2007 the max Nox level was 702,the State has lowered the max Nox level to 502.