Bosch Tri-Electrode Copper Spark Plug, Heat Range 6, Non-Resistor

In stock
This is the high quality Bosch plug we use in our ultra-high output engine builds and our 950+HP Audi 20v 80 Quattro. One heat range hotter than the F5DPOR, we've found that this plug does not foul as easily and provides a hotter, more powerful spark than any other plug we've tested, including much more expensive "Iridium" plugs.
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