I cannot speak about the Wix race filter because I have not done any true testing. I went from the 2" Wix race to the K&N 4". I went faster with the K&N and now more consistent. Since I have not tried a 4" Wix(not sure if it exists) this cannot be a true comparison. Nonetheless, what that tall K&N filter(w/o oil)will do, is straighten out the air flow and give a better and consistent signal to the carb. Thinking about the K&N stack with filter 5"filter/5" stack. I do not go 200 + mph in the 1/4 but the Pro Stocks do and they use K&N filters to stabilize the air that enters the carbs(pre- 2016).