Just replaced the spark plugs on my truck this weekend — what a difference. Throttle response feels smoother, and the idle is noticeably steadier. Honestly didn’t realize how much old plugs can affect performance until now. Took about an hour with the right tools. If you’re on the fence about replacing yours, it’s definitely worth doing, especially if you’re past 30k-50k miles (depending on the plugs you're using). Just make sure to gap them properly!

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