Adjustable Polished TD04 Wastegates
These are billet wastegate actuators that are adjustable from 12psi to 25psi base pressure, as opposed to the stock 7psi wastegates. These will also allow you to run higher boost levels without the wastegates opening up at low boost pressures.
Green springs: 5-9psi
Yellow Springs: 8-14psi
Blue Springs: 15-20psi (Recommended for 3000gt street/strip applications)
Red springs: 20-25psi