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NGK R7437-8 Racing Spark Plug - Audi C7 S6, S7, RS7, D4 A8, S8 4.0T


Unfortunately this product is currently on backorder. Please contact us for the latest ETA.


The NGK R7437-8 spark plugs operate colder than stock, which results in better pre-detonation resistance and spark plug life under extreme conditions.

These plugs are recommended for Audi C7 S6, S7, RS7 and D4 A8 / S8 4.0T vehicles with any APR tune.

Tech Note on APR Software equipped vehicles:

APR recommends upgrading the engine’s spark plugs to NGK R7437-8 with a .024” gap for 4.0T vehicles at all stages including on vehicles with upgraded RS7 turbochargers. If the vehicle is used for any form of racing, or extended wide-open-throttle sprints on the Autobahn, APR highly recommends upgrading the spark plugs for engine longevity and safety. In the case of engines with upgraded turbochargers, these spark plugs are highly recommended. A change interval of 10-15,000 miles or 16-24,000 km is required for engine longevity and safety.

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Brand NGK
Stock Type N/A
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