Originally posted by 813_05_STi
too many ppl get mod happy and get a turbo back. yes there good but if your not going to port the turbo, or upgrade it dont bother with a d/p. If you get a aftermarket d/p your going to creep with a stock turbo. not safe and you will not get any warranty with one. I have a turbo back, and had the turbo ported for $75. well worth the $$
He is correct, somewhat. Sti owners have had problems with boost creep when going with a full TBE. Hence, porting the turbo has helped. However, WRX owners do not suffer these problems with the little TD04. If you want to wake up the WRX, you'll need an up-pipe/downpipe combo.