Just a quick question...I recently replaced the stock plugs in my 2004 supercharged S281 with a set of NGK TR6's. I gapped them at 0.035". However, I looked at the sticker on the hood and it says to gap the plugs at 0.052" to 0.056".
Thanks, I'll just leave it where it is gapped. BTW - how did you come up with the gap setting? Is there a formula based on boost and hp level over stock, or something?
Thanks, I'll just leave it where it is gapped. BTW - how did you come up with the gap setting? Is there a formula based on boost and hp level over stock, or something?