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I'm going to be using them. I just wanted feedback to see if anyone has use them before. BTW the 2 spark are made by bosch for GM. The bosch one comes in a bosch box but has GM stamped on them. The other comes in a GM box. They are the exact same spark plug.
The reason i brought up this was because it the only spark plug in the aftermarket i know of that has 3 hooks versus +2 or +4
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