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 D6500-0005 (Black) coils are compatible with BMW M and S Series engines M52, M54 (produced before October 2002), M62, M73, S52, and S62. Replaces OEM part numbers 12131748018, 12137599219, and 12139067830. TRUSTED IN THE U.S. FOR OVER 45 YEARS: Founded in 1979, Dinan is well-established as a leader in BMW parts manufacturer in America. Quality products and solid engineering have made Dinan a household name among BMW enthusiasts worldwide.