I put a obx header on my 98 z24. turns out to be the wrong header( designed for ld9's withought the egr) and it's blocking off my egr valve and throwing a cel.

what would my options be? besides putting the stock manifold back on.

could I block it off in the front and get a re-flash?

I'll probably put the stock manifold back on so if anyone wants an obx header for cheap let me know

You could take the header off, and use a grinder to cut a slot in the header flange if you want to keep the egr. Just put a 96-99 ld9 exhaust gasket on the flange and trace it, then grind out the slot.

If you ditch the egr and dont want a cel, you can delete the code with hpt.