I'm useing stock injectors with a FMU, but i bought RC440's now when i install them what other if any mods do I have to make? Do I need to mess with my FMU at all or anything??????

 

You should ditch the FMU, get a good FPR, and get some engine managment...you'll be way happier, and faster.

 

if u put on those 440s with the FMU with NO tune...

Ur gona be filling your cylinders with nothing but gasoline.....

U can install the injectors ALONE if you chip and tune your ecu or get a standalone tuning system...

and u can say bye to your fmu cause it wont be needed. and u dont need an FPR either unless ur running a lot of boost.

 

yea im only running 6psi
Thanks for the advice