hello iv just purchsed some s3 injector and injection rail with 4 bar pressure regaltor and difrence from stand performance wise ?

im going to be doing a k04hybreed conversion on my 4x4 soon so thing apprantly i need lol

If your cars not mapped for it I can't see it making any difference.

A 4 bar FPR is usually a requirement for some stage 2 maps and above

once he has a hybrid he will need it to match the uprated setup.

no point putting on before really.

exactly what you need for a k04 setup but possible to small if you are going for a hybrid k04

dont put on until turbo conversion is done so mapping can be sorted

dont put on until turbo conversion is done so mapping can be sorted

+1

That what I've been told, and seen.

If the ECU hasn't been adjusted to the injectors it will be v.unhappy.

4 bar may not be required, depends on the mapper. ive got a spare here incase anyone ever needs to purchase