![Hypertech External PowerCoil (99-02 V8 Sierra 1500)](https://www.americantrucks.com/image/hypertech-sierra1500-external-powercoil-4072.S161383.jpg?obj=car&wid=640&hei=480&sharpen=1)
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Description, Q&A
Description. Your stock coil starts progressively dropping voltage at 4,500 rpm. Hypertech coils are designed to give you a steady, hard-hitting spark throughout your car's rpm range with 40 percent more voltage than stock--53,000 V, compared to the OEM's 38,000 V. The result is more power and a complete fuel burn that may give you an extra five horsepower. So, if you want more voltage, then Hypertech coils are just what you need.
Fitment:
DetailsHypertech 4072
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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