Quote:
Originally Posted by redondoaveb
The Stillen CAI is CARB approved. Catbacks don't need CARB approval.
It appears the Injen CAI is CARB approved also.
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Stillen only lists compatibility up to 2018, I'm assuming it's just because they haven't tested it yet but I'm waiting on their response.
Injen says it's only tested up to 2013 so probably won't pass smog. Looks like they wanted to stop spending on the fees to license it.