porsche3.2

Hi,
Does anyone know who makes the OEM plugs for the 957 GTS Cayenne.

Also which are better NGK, Bosch or Beru etc...

Thanks

Pillow

Denzo Iridiums are the way to go IMO. 100k interval.

porsche3.2

Thanks

What about Bosch Spark Plugs FR6NPP332?

Petza914

Silver is the best electrode material followed by copper. Those fancy metals like platinum and iridium are purely about extending the replacement interval, but actually don't conduct electricity or perform as well as silver or copper.

You can find online a decoder sheet where you can figure out a Bosch alternative to the oem plugs. Hex size, temperature range, reach, shielded or exposed electrode, resistor or not, and electrode material are all determined by the letters and numbers in the plug number.

porsche3.2

These are from Bosch Website.

Copper with Nickel Spark Plugs

Bosch copper core spark plugs feature a heavy-duty nickel center electrode for longer lasting service life compared to standard copper plugs.

Key Features

• Heavy-duty nickel center electrode for longer life
• Copper core provides better heat transfer

Part Number: FGR5NQE04

Pillow

Did I mention Iridiums work just fine for 100k? ~$7 each and work. (I've seen them go 150k and still look fine in LS motors!)

... I think too many people just like changing plugs! LOL

porsche3.2

handbook says every 4 years, don't want to keep them in too long as they could seize.