Spark Plug, Bosch Super Plus - E46 M3, MZ3, Z4M

Alternative plug in a hotter heat range

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Price:
$14.99

This is a Bosch replacement spark plug used in the S54 engine in the E46 M3, MZ3 S54, and Z4M Roadster/Coupe.

The Bosch Super Plus plug uses a copper core with Nickel-yttrium coating for better longevity and protection. Copper has better heat transfer than platinum for better all-around performance. However, this plug carries a heat index 1 position higher than the OEM NGK plug. Usually a colder plug is better for performance while a hotter plug is better for fuel economy. Our recommendation for this engine is to stick with the OEM NGK DCPR8EKP plugs unless your car has been modified to run more fuel and a hotter spark is needed. Running this plug in a stock or tuned engine may result in misfires.

Bosch is an OE supplier to BMW for spark plugs and many other ignition and engine components. These plugs are made in Germany and carry a two year warranty.

BMW Fitments:
3 Series
E46 (99-05) > M3
Z Series
E36/7 / E36/8 Z3 (96-02) > Z3 M - S54
Z Series
E85 / E86 Z4 (03-08) > Z4 M
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