I am changing my plugs tonight, I have NGK TR55 in now but I see a lot of people using the TR6. Whats the difference in the plugs and is the TR6 better?
NGK Plugs
- Thread starter f150harley
- Start date
Its just a one heat rang colder plug. If your running boost or nitrous then I would use the TR6 otherwise the stock heat rang tr55 is what you want.
+1 on above. Do you have any advance timing or anything???
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