Originally Posted by 32krazy!
doc mjgroves posted on a m/b thread that he had the c3 installed and was getting a e/c tune. guess he got it squared away. hpautowerks only lists the y pipe filter and its no longer called the c3 filter so it looks like the c3 has faded away. so if my c3 dies its a crank pulley or v8.... decisions decisons

Too bad, there is sure a market for them...I haven't found any machine shops around here to tackle it...tooling in all....