u/Beginning-Coconut149

Hey guys,

I'm looking at the basic headers + tune upgrades now that I've done the suspension, exhaust wheels and tires.

It looks like header upgrades are illegal in CA and I'm wondering if an OFT tune will cause me to fail my smog checks. I wanted to ask everyone:

1. Is it easy to swap back to stock tune before a smog test using a OFT?

2. Does anyone have experience modding their 86 with aftermarket headers in CA?