Spark plugs: ProCharger strongly recommends picking up a new set of one step colder spark plugs (like the NGK 6510 Iridium Plugs) when installing this supercharger kit on your 5.0L F150 and gapping them down to .034".
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WARNING: Cancer and Reproductive Harm
This product can expose you to chemicals including those known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information, visit [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov).