Originally Posted by SuprchdAP2

Hey, sorry I have been out of town and could just now reply. If I had not used the supersize Forge valve, I would have used this one from Turbosmart with the soft blue spring - https://www.turbosmart.com/product/k...cZ-dEUd1MC7P42. This is still significantly larger than the plastic Bosch valve that comes with the SC setup. I personally think the Forge may have been overkill, and as I said below the sound of the venting air is loud with my uninsulated vented carbon fiber hood. If I had the time and the inclination, I would try different valves and see which produces the best result. But for sure the larger, better quality valve will get rid of the flutter. What I don't know is if a slightly smaller valve would make a little less noise.