How often should I change the spark plugs in my BMW M3?

I recently purchased a BMW M3 and I am wondering how often I should change the spark plugs. I have heard conflicting information and I want to know what is best for my car.

Changing your spark plugs every 50,000 miles is recommended for the BMW M3. However, if you notice any loss of power or decreased fuel efficiency, it would be wise to change them sooner.

I suggest checking your owner's manual for specific recommendations. However, most BMW M3 owners change their spark plugs every 60,000 miles.

If you are planning on modifying your BMW M3 and increasing its power, I recommend changing the spark plugs more frequently, about every 30,000 miles.