These are the spark plugs I recommend for the Gen 2 B58 (M340i, A90 Supra, etc). These are OEM plugs and work for both stock and tuned applications. No gapping is needed.
DIY Replacement: https://youtu.be/2CCYEtEumrE
Part Number: 12122455258 (BMW), SILZKGR8C8S (NGK)
Click Below to Order
These are the spark plugs I recommend for the Gen 2 B58 (M340i, A90 Supra, etc). These are OEM plugs and work for both stock and tuned applications. No gapping is needed.
DIY Replacement: https://youtu.be/2CCYEtEumrE
Part Number: 12122455258 (BMW), SILZKGR8C8S (NGK)
Click Below to Order