The NGK Racing R7437-9 Competition spark plugs are an essential upgrade for tuned Audi RS6/RS7 C7 4.0 TFSI models. Engineered to be one heat range cooler than stock, these spark plugs offer superior heat dissipation and enhanced spark stability, making them perfect for stage 1 and higher tuning leve..

Enhance the performance of your heavily modified 2.0 TFSI Ea888.3 engine, found in vehicles like the Golf 7 R, Golf 7 GTI, Leon 3 Cupra, or Audi S3 8V / TT 8S, with NGK Racing Competition spark plugs. These spark plugs are one heat range cooler than the original equipment manufacturer (OEM) and feat..