Quote:
Originally Posted by FSETH
Until recently, the dealers gave me an option of Bosch or NGK. I preferred Bosch from past experience, but was going to give the NGK's a shot. When I called one local dealer for a quote, they said NGK's were out as a dealer supplied part and that Bosch was the sole plug used. That is just what one dealer told me. I have not tried any other dealers in my area, but the fact that the NGK plug's part number has recently changed makes me think the dealer was telling the truth. 
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The ETK still lists the NGK BKR6EQUP (12 12 9 071 003) as the correct plug. Might want to speak to your dealer about that. My guess is that they have a bunch of old stock they need to unload. I would get NGKs no matter what.
Also, both plugs claim 100k intervals but I would change them every 30-50k.