Focus RS mk3 ST250 Ford spark plug SET Genuine Ford Motorcraft spark plugs Set of 4 Suitable for Focus RS mk3 2.3 & Focus ST mk3 2.0LAU Express post Please note: Ford constantly supersede part numbers, do not be alarmed if your current spark plugs have a... MSRP: Was: Now: $93.06 Add to Cart
NGK 1 step colder spark plugs LTR7IX-11 1 Step colder heat range than original Ford plugs Common upgrade for Focus RS 2.3 & 2.0L Ecoboost engines Higher durability and melting point V platinum Increased heat resistance and efficiency Set of 4 AU Express... MSRP: Was: Now: $70.00 Add to Cart