I am quite happy with my current MPG...butttt...too much of a good thing is never enough! Aargghhh!! I am just never satisfied. Anywho, on a side note. I had never heard of a "Multi-Gap" plug untill reading about them on the "a different A14" topic. In getting ready to replace the plugs on my newly puchased B I found it itself takes the "Multi-Gap" plug. I am looking forward to picking up a set and giving them a whirl.