i have the July issue, which is the first in the 3 part series. I have yet to recieve the 2/3 issue.
Let me know what you guys think about the article.
THey say that they put the "flow testers" in 4 places...primary cats, secondary cats, resonator, and muffler. The article goes on to say something about the restriction in the first position meaning that the M3 is a good candidate for headers....How do they know the restriction is in the headers and not the primary cats? am i missing something?
please share your thoughts...