[JamesM3M5]

I love to be that dick that tells you to use the search button, but I've had a long week, too much strong coffee (Trader Joe's sells this Cafe Parano whole bean that's just magically delicious with a touch of sugar and heavy cream, but I digress...), and now I'm on the couch reading forums, filling an imaginary shopping cart full of mods wondering how in the hell I'd afford them, and watching Monaco F1 GP practice rebroadcast.

So anyway, Vishnu is using the NGK 5992 single-electrode iridium plug in their 640+ RWHP car. Others use those same plugs in other FBO/upgraded turbo cars. Most all others are using the factory plug from either an OEM supplier or the dealer plugs.

NGK 5992 is a ILZKBR7A-8A. The original plug is Bosch ZGR6STE2. The BMW branded plug appears to be identical to the Bosch OEM but costs more.