Green up the ignition in your full-size pickup truck's engine by adding the performance GMC Sierra spark plugs that we offer at AutoAnything. Instead of using the mild spark of your OEM plugs, try one of our Sierra performance spark plug sets that boost the wattage from 50 to 1,000,000 each time one of these plugs fires in your engine.
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Most of our Sierra spark plug reviews attest to noticing gains in performance and fuel economy just by adding these plugs. That's because built-in capacitors in our GMC Sierra racing spark plugs store the energy from your coil and fire it with an intense pulsation.