ZR-1 Net Registry Forums - View Single Post

zr1don · 03-02-2011

I don't know the intent of Magnaflow, the cat manufacturer, but the cat comes w/inlet and outlet pipe, looks like it was intended to be installed in line in the exhaust, not attached directly to the stock exhaust manifold. They recommend you have them installed at a "professional installation shop". The shops are required to make the installation as close to original oem as possible? The referee approves or disapproves the exhaust manifold, which GM no longer makes. You have to show proof to the referee that the part is no longer available.

03-02-2011	#7
zr1don Join Date: Jan 2006 Location: Temecula, CA Posts: 88	Re: Passed CA Emissions I don't know the intent of Magnaflow, the cat manufacturer, but the cat comes w/inlet and outlet pipe, looks like it was intended to be installed in line in the exhaust, not attached directly to the stock exhaust manifold. They recommend you have them installed at a "professional installation shop". The shops are required to make the installation as close to original oem as possible? The referee approves or disapproves the exhaust manifold, which GM no longer makes. You have to show proof to the referee that the part is no longer available.