can i use both or is it one or the other? im confused because the fmu is to bring up the pressure of your injectors. some one help me out.

im not new to forced induction but i didnt think what the outcome will be if i use both.

 

no u dont need both.. if you use FMU u can use stock injector. using 450cc it's better to use a piggy back. !

 

DO NOT use both. It will wash the rings out. Please note what the previous poster stated.

 

i can relate to this, i ran both for like 5 minutes...as soon as you get on the gas, the car will bog and not go anywhere...it will be way too rich, just install the injectors, but then in order to run the injectors your ecu will have to be chipped or they wont work right...correct me if im wrong..

 

thanks guys i'll be selling the fmu then and plan on running the 450's because i plan on running turbo edit to tune my car.

 

cheers

an adjustable fpr is handy to have though