NGK Spark Plugs for BMW B58 — M140i, M240i, 340i, 440i
- Regular price
- £79.99
- Sale price
- £79.99
- Regular price
-
The recommended spark plug for all stock and tuned B58 applications. The NGK laser iridium plug specifically designed for the B58 platform, offering superior ignition performance and knock resistance over the factory-fitted items.
On tuned cars running increased boost, the factory plugs are known to reach the end of their life sooner and can cause misfires under sustained load. Fresh NGKs with a tighter gap restore clean, consistent ignition across all cylinders.
We recommend gapping to 0.024" (0.6mm) for Stage 1 and above. Replace every 15,000–20,000 miles on a tuned car, or sooner if you notice any roughness or misfires.
Fits: All Gen 1 B58-equipped BMWs including M140i (F20/F21), M240i (F22/F23), 340i (F30/F31), 440i (F32/F33/F36), 540i (G30/G31), 740i (G11/G12).
The recommended spark plug for all stock and tuned B58 applications. The NGK laser iridium plug specifically designed for the B58 platform, offering superior ignition performance and knock resistance over the factory-fitted items.
On tuned cars running increased boost, the factory plugs are known to reach the end of their life sooner and can cause misfires under sustained load. Fresh NGKs with a tighter gap restore clean, consistent ignition across all cylinders.
We recommend gapping to 0.024" (0.6mm) for Stage 1 and above. Replace every 15,000–20,000 miles on a tuned car, or sooner if you notice any roughness or misfires.
Fits: All Gen 1 B58-equipped BMWs including M140i (F20/F21), M240i (F22/F23), 340i (F30/F31), 440i (F32/F33/F36), 540i (G30/G31), 740i (G11/G12).
We keep a large inventory of stock at our warehouse however due to widespread delays in the industry, some items may be on backorder. If you need parts ASAP then please contact us on the live chat or at support@wayside-performance.co.uk and a member of our team will get back to you.
Unsure on fitment? Just drop us a message on the live chat or support@wayside-performance.co.uk and a member of our team will assist. Please make sure to include as much detail as possible including make, model, registration and the parts you are looking at.
