Best downpipe for CA use

Chogokin · Aug 10, 2018

I don't see why not. The exhaust is post cat...as long as you keep the stock downpipe...it shouldn't affect emissions.

Faceman · Aug 10, 2018

tnthlttr said:
Probably a dumb question. I have a 2016 TSI, was thinking of converting to gti exhaust, but keeping OEM DP still installed. Would that pass? I’m also from Hawaii and never had driven in CA until recently. Just wanted to know what to expect.

Upgrading to the GTI downpipe would pass, too. Plus, it would be a better fit to the GTI catback.

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tnthlttr · Aug 10, 2018

Thanks guys! I'm unfamiliar with the CA restrictions and I read a couple places that mentioned a comparison from car to a stock diagram of the car and wasn't sure if that also meant that changing even the structure of some parts would affect the outcome of passing or not, but it sounds like it's just as long as it passes emissions.

pieguy · Aug 10, 2018

In California you need to pass readiness codes and visual. Don't need sniffer for post 2000 cars. Can't have a CEL and your intake has to be either CARB legal or stock. If they check under your car and see the aftermarket downpipe, they may recognize it's not OEM or just see a cat of any sort and pass you. Kind of a coin flip.

Best downpipe for CA use

Chogokin

Autocross Champion

Faceman

Autocross Newbie

tnthlttr

Passed Driver's Ed

pieguy

Ready to race!