Dinan Cold Spark Plugs for M2C - M3 F80 - M4 F8x S55 & 135i - 235i - 335i N54 - N55

Since its inception in 1979, Dinan has become North America's premier tuner for BMW vehicles. Specializing in the development, manufacture, and marketing of an extensive array of high-performance products and systems, Dinan's offerings are accessible through a widespread network of authorized Dinan Performance Centers. This network includes select BMW dealerships as well as independent BMW service and high-performance facilities. In recent years, Dinan has broadened its scope to encompass additional European brands, such as MINI and Mercedes Benz, enhancing its diverse range of offerings. Dinan Performance offers a 2-year, unlimited mileage warranty from the original purchase date on its products. This warranty is transferable if the vehicle equipped with Dinan products is subsequently sold. In the event of a malfunction or a defect in materials and/or workmanship, products must be presented or shipped to an Authorized Dinan Dealer for service. Should a warranty claim arise, Dinan reserves the right to either repair or replace any defective component at their discretion. It's important to note that this warranty does not cover costs for repairing any affected original vehicle manufacturer's components, nor does it include labor charges or shipping costs to the dealer associated with the repair.