Bro you pay 2k for a katech fuel pump now you have more problems than before that's sadly.
I think if I go with a bigger fuel pump upgrade the old one what is wrong with
FSCM from OEM system.
Also, if I add example dw 440 fuel pump on the OEM system or like this one
https://deatschwerks.com/products/9-401-7003
why i need aux pump controller if I had more volume on same voltage !?
I don't need to add any AUX controller or not ?
If the new pump delivers more volume with the same control or voltage, why should you increase the voltage? Then you can drive the system with a JMS voltage booster and save all the work and money if you don't want to overdo the performance.
Or you can put a DSX fuel pump in the bottom, which I personally don't find a nice solution.
please correct me if I'm completely wrong, I want to understand the system.
I like the thing with the upgraded fuel pump in the tank, but all this control and wiring makes you crazy.
Thanks a lot for your support