Needed to pass emissions last month. I have a ZZP catted downpipe (j hook O2 bung), K&N drop in- ZZP intake tube- and 21psi Trifecta/HP combo tune done last year.
I have done the GM driving cycle...
Type: Posts; User: 09victory
Needed to pass emissions last month. I have a ZZP catted downpipe (j hook O2 bung), K&N drop in- ZZP intake tube- and 21psi Trifecta/HP combo tune done last year.
I have done the GM driving cycle...