8 x BMW Copper Lock Nut (8 mm) - Exhaust 318i 318is 318ti 320i 323i 325i 325is 328i M3 M3 3.2 528i M3 M5 M6 M6 135i M Coup&eacute; X1 35iX 135i Z4 35i Z4 35is 335i 335xi M3 335d 335i 335xi M3 335i 335xi M3 335i 335is 335xi M3 335i M3 335i 335is M3 740LdX M6 M5 535d 535dX M6 M6 M3 M4 8 x BMW Copper Lock Nut (8 mm) - Exhaust This part is used in Catalyser/Diesel particulate filter -- CATALYST/LAMBDA PROBE -- Catalytic converter/center muffler -- CATALYTIC CONVERTER/FRONT SILENCER -- Center muffler -- DIESEL CATALYST -- Diesel particle filter -- Exhaust manifold -- Exhaust manifold with ca Manufacturer Warranty: 24000 miles or 2 years Please see Product Description below for vehicle compatibility