Turbosmart WG40 3PSI Inner Spring Brown/Black

This 3 PSI inner spring from Turbosmart is made from a strong, well-built steel that's designed to hold its shape under the heat and pressure of a performance engine. It's a direct replacement for the stock spring in several Turbosmart wastegate models, including the Ultra-Gate38, Comp-Gate40, and Hyper-Gate45 external wastegates, as well as the IWG-75 internal wastegate actuator.

When you're looking to fine-tune your boost levels, swapping out the inner spring is a common and effective method. This particular spring offers a 3 PSI rating, allowing you to set a lower base boost pressure compared to higher-rated springs. Turbosmart builds these in Australia, and they're known for being reliable and holding their tension consistently, which is crucial for stable boost control. They don't cut corners on materials or testing, so you can expect it to perform as intended.

If you're working on a forced induction setup and need to adjust your wastegate's actuation point, this spring is a solid option. Just be aware that it's not CARB approved and cannot be shipped to California.