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Bland
Join Date: Nov 2003
Location: I'm 'out there...'
Posts: 8,786
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955 v8 cayenne spark plugs… 4 prong or iridium?
They recommend the iridium single electrode plugs for the Cayenne Turbo… this is what I bought for my Cayenne S. When I went to swap in the new plugs, I discovered the 4 prong Bosch super plugs… they looked ‘ok’.
So, what would you do, leave in the Bosch Supers or install the NGK iridium plugs? I’m at the point I need to decide. The iridium’s might last the rest of the life of the vehicle.
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06 Cayenne Turbo S and 11 Cayenne S
77 911S Wide Body GT2 WCMA race car
86 930 Slantnose - featured in Mar-Apr 2016 Classic Porsche
Sold: 76 930, 90 C4 Targa, 87 944, 06 Cayenne Turbo, 73 911 ChumpCar endurance racer - featured in May-June & July-Aug 2016 Classic Porsche
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