Pulstar spark plugs- 12% more horsepower guaranteed. BS or worth a shot?

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That is pretty amazing as I have had plenty with huge gaps at less miles. One customer's Nissan X trail wouldn't run as the gaps were that huge. I didn't have access to new plugs at that time of the day so I just regapped them by eye and the car ran fine. He had 168k kilometres on the vehicle and it had always received genuine dealer services and the plugs should of been changed at 100k klms. :doh:
 

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