When running a fmu do you still have your stock fpr hooked up? I am wondering how i should do it. I have never used a fmu before so i have no clue. I also did a search. Thats how i found the in and out but i am puzzled on weather to use the stock fpr also. Thanks in advance.

 

Yes, leave your stock FPR hooked up. The FMU goes after the stock (or even aftermarket) FPR. The FMU only works under boost, so you need the stock FPR for regular driving.

 

Best to use a 4:1 ratio for our maximas when they are F/I; TC or SC.

4:1 ratio and AFC works well together

Leave stock fpr before the fmu and change fuel pump to 255lph and you should be good till 10+psi of boost before maxing out injectors to much, I've pushed 12+ and still haven't had a problem!

 

Im not worried about it for my car. I have a 255 walbro and 550cc injectors.