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Turbo nuts


dyl33
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Probably over thinking this but when i installed my turbo i used genuine manifold to turbo studs and was given champion brand steel high tensile 8.8 nuts by the autobarn guy they had some type on gold coating on them.

I've noticed the nuts have gone a whiteish colour, I assume thats the coating burning off.

My question is, is there anything special about manifold to turbo nuts or should my steel high tensile 8.8 nuts be perfectly fine for a high heat application?

 

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The gold coating would have been a zinc passification, which is certainly not high temperature capable. The steel itself will be fine.

This is what genuine ones look like. Just steel. https://justjap.com/catalog/product/view/id/22810/s/genuine-nissan-turbo-manifold-exhaust-housing-outlet-dump-pipe-nuts-nissan-ca18-sr20-rb20-rb26-vg30/

 

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