1996-1999 BMW 328i 2.8L I6. 1996-1999 BMW 328is 2.8L I6. 1997-1998 BMW 528i 2.8L I6. 1996-1999 BMW M3 3.2L I6. 1997-1998 BMW Z3 2.8L I6. 1998-2000 BMW Z3 3.2l I6. The closer that the injectors flow to one another, the more precise the entire fuel system will be which makes it more efficient.
