Want to find out if anyone change extractor 421 experience CEL problem for MAzda 3 auto- can share or how to prevent CEL as this is the common problem. i am thinking of changing as i do not wan to spend time solving the CEL.
Need advice as the title said. How do you use an evo5 turbo to evo3 engine? Can it be done & what are the modification needed? Does it worth to do this?