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Qckslvr · 11-16-2018, 07:24 AM

I too have had varying success with headers. Hooker headers for a 390 that took 2 hours of grinding, heat, and massaging to make fit a Mustang. Or OBX turbo header that crack midway through a race on a Miata.

So yes I am skeptical.

I live in CA, home of the smog demons CARB.

I am not opposed to changing the system back to stock every two years. So the tip on changing the bolts to studs, is greatly appreciated. I shall check into ARP.

I am looking for improved performance, and saving my very expensive cats from future replacement.

11-16-2018, 07:24 AM	#7
Qckslvr Registered User Join Date: Aug 2010 Location: San Jose, CA Posts: 152	I too have had varying success with headers. Hooker headers for a 390 that took 2 hours of grinding, heat, and massaging to make fit a Mustang. Or OBX turbo header that crack midway through a race on a Miata. So yes I am skeptical. I live in CA, home of the smog demons CARB. I am not opposed to changing the system back to stock every two years. So the tip on changing the bolts to studs, is greatly appreciated. I shall check into ARP. I am looking for improved performance, and saving my very expensive cats from future replacement.