Hey Guys, just got my JB4 in my N54 2008 and im loving it. the car is at 32k miles, plugs never changed. I plan on perhaps cruising around on map 1 or 5 (car is stock) and I will get the plugs changed real soon. Any other maintenance items that I should tackle while doing that? Should I wait until I get misfires to replace or just do it now? Also, where is the cheapest place? Tischer is at 109 shipped.
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