OK, I have gutted airbox with K&N, TT 266 cam, tt chip, TT high flow cat, neuspeed 2.25 exhaust. I have all stock spec wires, I was wondering if any of you guys out there have tried different plug gaps? I already have Bosch platnum plugs (not the +4). So you think I should just keep the stock gap? Or any recommendations for other gaps?
You tend to get a little more power out of a wider gap. The problem is that if you get it too wide, you'll have misfires, especially at higher rpms. The misfires are due to the spark being extinguished or just plain not enough voltage to jump the gap.
I would try one size more, like from .035" to .040" and see if you have any problems. However, it you get too many misfires, your CEL will come on and you'll have to get it reset if you don't have a VAG-COM.
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