Quick Qustion For California Member, Need Answered PLEASE!

[MonkeyMadness]

Will a stock M42 with a "After Marker" (car still has o2 and cat) header pass smog?
Car is clean no leaks bone stock except OP installed a header a d K&N filter pod.

Mostly worried about the inspection.

Thanks
Jer

[Balleristic31]

M42s come with long tube headers stock. So I'm not sure how the smog guy would know the difference

[Danny]

Technically, no it won't. Will they notice? I doubt it.

[bmwman91]

The rice filter might get you to fail the visual inspection, depending on the shop. You should stick a stock air box in there with a good paper filter anyway...same or better power and less dirt getting into your engine.

As for the header, you should be fine. Can you get a picture of it? The stock one was pretty good and I know that a number of people have mistaken it for after-market because it is not common to see those on production cars!