I wanted to add an aftermarket performance exhaust, but can`t find out if product "www. greddy.com" ( Greddy Spectrum Elite Exhaust System ) part # ( GR-10127962 ) is California C.A.R.B. / E.O. emissions legal for usage in California on my Nissan 370z. Can you please help me out in this problem. Answer:
We were unable to find an Executive Order number for this product. It may be
illegal for use in California on your Nissan 370z. We'd recommend contacting
the manufacturer and asking them for the EO number (if it has one hopefully
stamped on the exhaust unit), or supplying proof of it on documentation
which you can show the smog station. The California AIR resources board
Aftermarket Database is below: