Just measured the LMM values again and also the temperatures of the sucked air in open K&N with flower pot and without flower pot. Well, the following came out: Outside temperature: 17.5° Intake temperature K&N with flower pot: during the ride (no matter how fast) between 27 and 32 Intake temperature K&N without flower pot: exactly the same. If I stopped from a normal ride, I could stand as long as I wanted, but the temperature did not exceed 35°. The temperature of both versions did not exceed 40° for the temperatures, but this annoying noise when accelerating (load pressure control or what I know) is very dampened, while the intake noise is amplified. So: Flower pot = cool And honestly: I have never felt anything about a power loss by K&N anyway. And if the sucked air with any driving mode approx. 13 to 14 Gra d is above ambient temperature, this difference will be so blurred after loader and LLK at the latest that it makes up a fart. Especially since I don’t believe that the original Luffikasten provides much cooler air… In this sense: There is nothing for me that speaks against the open filter. At least not at 17.5 degrees outside temperature…