Anyone know anything about these? I have a used one from a 1.6na motor. its in great shape! I know its a totally aftermarket head and its for the 12mm bolts.
Is there any performance mods done to these or get any gains from installing it?
yup, I got a topline head on my 82 NA. I don't know if they're made for turbo or not, factory turbo heads were sodium injected :? I think...It's been great since I put on 25,000mi ago. As for mods and performance, I have no clue.