The blue should still see you good on a td04 dude at a bar of boost 230bhp or there abouts. Fully forged 1.4bar td04 greddy ultimate or stand alone! But then again the blue will still see you good for 1.4bar but the ultimate has more feachers/tables. Ohh and if you are thinking of changing the turbo anytime soon keep me updated on the JAM mani