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Likewise, people ask, are any spark plugs Made in USA?
ACDelco Iridium plugs are US-made versions of the NGK Laser iridium. And their wires for American nameplates are US-made as well. Yes, their factory is in West Virginia. Another reason to buy NGK plugs.
where are Champion spark plugs manufactured?
Other main Champion Spark Plug production facilities are in Mexico and the USA.
More expensive plugs can be worth it if the car is heavily modified. That having been said, many OEMs are equipping their cars with fancy-ass plugs from the factory. Numerous other cars have platinum spark plugs from the factory. You're not going to improve much on those configurations.