I having a dilemma as wether to go ko4 or just get the most out of my k03 gti
I already have:
Forge twintake
Blueflame tbe with 2'75 sports cat
Currently on custom map from r-tech 265bhp
Will be getting an S3 intercooler next year.
Is it worth going the whole k04 route or can you just bolt on the turbo and injectors?

Would hpfp benefit if my car with either turbo on?
What else would help to get the most out of a ko3?
I dont want buy all these mods and for someone to say if you just bolt on a k04 you will have so much more power

Any help is much appreciated