K04 Turbo Fuel Pressure Regulator

[AudI_MaN]

Hi,
I was wondering if anyone could tell me if it is necessary the with the K04 Turbo upgrade, i need to add a 5 bar fuel pressure regulator if im only going to be running a 15-16psi ECU program? If it is necessary, what will happen if i dont have it? Thanks

[Talibangunner925]

bosch 5 pound fpr will do it fine

[marked001]

you can run either a 5 bar fpr or tt injectors, I believe..one or the other.