I have a 2007 Turbo with 30k - no engine issues at all, just changed the oil, fuel and air filters, and belt...do I need plugs?

 

Factory states 40k miles.... if your car is stock.

Tuned should be replaced every 20k.

Make sure you dont get raped on the price, but be aware it is a 6hr job. If you do hold off till 40k then my suggestion is do the coils since you most likely wont be getting your hands in there again for another 40k.

 

I have an 07 with the same mileage. I'm doing my plugs at the same time as oil, transmission, and exhaust/tune. You can save a bit on labour for the plugs if you plan to change your exhaust.

From what I have read a tune can foul your plugs fast.

 

Agreed!!

 

thats why my post said 20k for tuned cars