Exhaust Manifold Bolts

[Swiss_Toni]

What's the recommended type of bolts for exhaust header/manifold to head bolts?

Just installed my newly Zircotec headers and want to replace the the current 12.9 Allen socket bolts with something with a hex, but don't want problems down the line.

I won't put in Stainless ones due to potential dissimilar metal corrosion but not sure if standard steel or nickel plated ones are the way to go. I imagine 8.8 grade will be fine though thoughts on that would be good.

[Swiss_Toni]

No problem with clearance.

I saw the APR ones in their catalogue but though I'd get something local to save a lot of hassle getting them, never mind the cost.

[Swiss_Toni]

Of course you're correct, do it right, do it once.... ARP bolts on order