Spark plug recommendations

4.0 V8 40v biturbo TFSI - 420 bhp
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NotNormal
2nd Gear
Posts: 164
Joined: Fri Oct 06, 2006 2:41 pm

Spark plug recommendations

Post by NotNormal » Tue Feb 23, 2021 10:29 pm

I’m looking for spark plug recommendations.
I have a 2018 S6 - currently quite vanilla, but I’d like to a little ahead of the game.

Spec is :

Race chip tuning box (27/28psi) (this is coming off for a JB4 unit that arrived today.
RS6 air box - pipercross filter
Primary mufflers deleted
RS6 Performance Sports option exhaust



What would people suggest for spark plug upgrades please


Many thanks

Tom

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