They have proven horsepower gains on dynos across the world over hundreds ove vehicles. From 9whp to 50whp. I dont expect large gains, but every lil bit helps.
Back to what I said orginally, I’m not trying to get huge gains out of this car. If I want 400+whp I need to upgrade the turbo. THAT is when an upgraded intercooler is more effective. I would also need biger injectors, twin fuel pumps and preferrably a larger bore fuel rail with an adjustable FPR. You’re talking THOUSANDS of dollars. The stock IC is large enough to hold the stock turbo at increased boost. Thus no need to upgrade if I’m not changing the turbo setup