best replacement spark plugs
This is a discussion on best replacement spark plugs within the Firebird / WS6 forums, part of the Vehicle Specific category; I did the NKG plugs today, dyno too @ 368rwhp, 375lb-ft...
12-02-2006, 05:48 PM #21
I did the NKG plugs today, dyno too @ 368rwhp, 375lb-ft
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