Hi,
First of all, I am not sure if this is right place to ask, but I give it a shot!
I am going to DMV with my skyline and need some paperwork for exhaust before I try get plates on it.
I have a nismo 20020-rn590 frontpipe/downpipe and Invidia RS*R catback, and was told there existed documentation on these parts to get them approved by DMV. Atleast here in Norway they need that..
Hopefully someone has what I need, thanks in advance!