UP TO 10% MORE ENERGY OUTPUT THAN STOCK: Unlock max engine efficiency with top of the line engineering. Dinan coils produce a more consistent spark which can mean increased engine power, improved throttle response, quicker acceleration, & smoother idling. DURABILITY MEETS ENGINEERING: No more sluggish acceleration or misfires. From premium materials to rigorous testing, each coil is engineered for consistency, durability, and more efficient power delivery–all packaged in a sleek, performance-grade casing. DIRECT PLUG AND PLAY: Just a few steps to your instant upgrade. Visually confirm 3-prong fit, then swap out existing OEM coils with Dinan coils for plug and play ease. COMPATIBILITY: Dinan D6500-0008 (Black) coils are compatible with BMW B and S Series engines B36, B38, B46, B48, B58 and S58. Compatible replacement for OEM part numbers 0750990012, 12137619385, 12138643360, and 12138678438 TRUSTED IN THE U.S. FOR OVER 45 YEARS: Founded in 1979, Dinan is well-established as a leading BMW parts manufacturer in America. Quality products and solid engineering have made Dinan a household name among BMW enthusiasts worldwide.