Anyone tried out the RS7 spark plugs on a tuned (or untuned engine)? Part number - 06K 905 601M. Apparently they are better for tuned engines. I was just made aware of them today
2019 A4 B9 on B8's - H&R - JB4 - Cat sticker - Shaved and chamfered hubs for 10mm hubcentric spacers - Bunch of other stuff (sold)
2018 Q5 B9 PP, no cat sticker.
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