OK, I would love to buy these manifolds but I need to know FOR SURE they are CARB approved. And if I buy them and they are not, there is a money back guarantee upon return of the parts.
What does it mean to be CARB approved?
The California Air Resources Board, also known as CARB or ARB, is the "clean air agency" in the government of California. ... One of CARB's responsibilities is to define vehicle emissions standards.
California Air Resources Board - Wikipedia
Unfortunately, I can tell you that these are CARB compliant. They are OE Nissan manifolds that came off a flex model. I know what CARB approved is, most everything that you can buy new is carb approved, even lawn mowers. I will return no money and offer no guarantee. Once shipped, its yours. There are too many variables that could make your truck fail strict emissions testing out of my control. Good luck with finding replacement parts, there are many options available online, dealership, pick n pull's etc.