NGK Iridium spark plugs for BMW r75/7

[Bandito]

Has anyone ever tried NGK iridium plugs for the BMW R75/7? I just want to get an opinion. Thanks

 

[AlphaDogChoppers]

Waste of money. Iridium plugs don't increase performance. Their thing is that they have longer service life. Easier and cheaper to use standard plugs and replace them once a year.