Worn ignition coils are one of the most common causes of misfires and sluggish acceleration on BMW B series engines, and replacing them is routine maintenance on any high-mileage or tuned car. The Dinan D655-0004 kit equips a 6-cylinder B-Series engine with Dinan coils that plug straight into the factory connectors and deliver up to 10% more energy than stock for a stronger, more consistent spark. The black housings carry the Dinan logo, adding a visible detail under the hood.

Dinan D655-0004 Features:

• Up to 10% more energy output than stock coils for a stronger, more consistent spark.
• Direct plug-and-play replacement for the factory coils on B-Series 6-cylinder engines.
• Black housing with the Dinan logo.
• A functional upgrade, not just a cosmetic one, for stock and tuned engines alike.

Compatibility Notes:

• Fits 2016-2027 BMW 340i, 440i, 540i, 640i Gran Turismo, 740i, 840i, M240i, M340i, M440i, M2, M3, X3 and X4 M40i and M, X5, X6 and X7 40i, and Z4 M40i.
• Confirm your engine is a B-Series 6-cylinder before ordering; N-Series engines use a different kit.