High performance spark plugs

princefan319

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I’m really looking forward to summer!

Are high performance spark plugs (Magnum is one brand) claims accurate? Are they worth the money? Any downsides?
 
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I’m really looking forward to summer!

Are high performance spark plugs (Magnum is one brand) claims accurate? Are they worth the money? Any downsides?
I've used Iridium plugs the last couple times I've had them changed......
 
Our Honda came with iridium plugs and I've changed them once in 12 years (about 7 years ago) and they didn't look worn at all.
 
Our Honda came with iridium plugs and I've changed them once in 12 years (about 7 years ago) and they didn't look worn at all.
Had them changed in 2008 when we got the boat and in 2013. Might be time again......
 
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