I'm currently trying to figure out what mods I can do while passing smog.
I have a brand new 2013 WRX and I know I won't have to worry about it for 6 years but I just want to be ready.
Anyway, I'm thinking about getting my turbo and headers port and polished w/ ceramic coating by GrimmSpeed, GrimmSpeed hi-flow crosspipe w/ceramic coating and also getting the GrimmSpeed uppipe w/ceramic coating. (All black)
Also, I'd reinstall the stock downpipe when smog time comes (but not the uppipe) and flash back to stock.
My question is, if I go back to stock (minus the uppipe), will I pass visual even though everything else is ceramic coated? I know my car doesn't have a cat in the uppipe so I'm curious if I'll pass with an aftermarket uppipe.