Worried about spark plug failure in your tuned EA888 engine GTI / Golf R / A3 or S3? . These plugs are the best choice for all tuned IS38 / IS20 applications, as well as the specified plug for APR Stage 3 equipped cars.
Designed originally for race engines these plugs are made with a copper core and an iridium coated electrode tip. They are available in the correct heat range to keep your car running optimally. Sold as a set of 4.
Choose your heat range:
-Range 8 (R7437-8) is best for Stage 1 and 2 tuned IS20 and IS38 vehicles
-Range 9 (R7437-9) is best for Stage 3 applications and some high torque, and hybred IS38 vehicles.
These recommendations are for Gen3 EA888.3 engines only.