What spark plugs for Apr stage 2 S4

[Lukem10]

As title says....What spark plugs are people using for their tuned S4?

Mine is has a stage 2 Apr tune so just wonder which plugs would be best.

Luke

 

[arad85]

I have NGK-BKR9EIX in mine. Changed when I was going ultracharger - but that didn't work out due to supercharger clutch failing

 

[Dippy]

Mine has whatever Audi fitted at the factory. I'm not sure what reason APR have for recommending fitting new plugs, but I thought it was only with the UC?

 

[Cerbera9]

I think APR recommence the one step colder plugs due to the increased boost and heat of their ultracharger kit.
Personally I would only ever fit NGK plugs, been using them for years with zero issues.

 

[arad85]

Think it's to do with lasting longer at higher temperatures (I guess the more air in the cylinder, the hotter things get on ignition).