I was old enough to under stand when car makers left the dinosuar non resistor plugs.They were wreaking havoc on TV and FM channels.Police couldn't hear radios.
Why did Mercedes stick with old technology?For one last two sets Ive run were resistor plugs,Even the $12 plugs reduce voltage at the coil making them last longer.I have original coil at 177,000 miles
If iridium works for one driver why belittle him,or runs resistor plugs.I have racing timeslip to prove my plugs are good,there btter than NGKs,and I run the Denso brand,next brand will have 3 grounding straps.I get better mileage than most 320s

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1999 w140, quit voting to old, and to old to fight, a god damned veteran, deutschland deutschland uber alles uber alles in der welt