Review on K&N High Performance Universal Clamp-On Air Filter: Premium, Engine Replacement Filter - 2.75 In Flange Diameter, 4.5 In Filter Height, 1 In Flange Length, Round Tapered Shape (RG-1003RD-L) by William Bell

I drive a 2015 Mitsubishi Mirage and it's a 3 cylinder car. Other than that there are no replacement parts for it because A was a three cylinder and B wasn't in high demand for a car like rival Honda Fit OR anything. Of course, I didn't buy the case for its performance. But I didn't have enough stock on the car, it was inexplicably big, it hurt my eye and it didn't work well. So I made a custom cold air intake from the throttle body to the filter. I used this cold air intake filter and am glad I switched to it. I first bought a regular cold air intake filter off Amazon for $12 and told myself that anything else you just buy from brands all do the same thing. Of course they are, but to a certain extent. After installing this filter, I noticed a slight increase in acceleration, response, and power. Now everyone takes the word "simple" seriously. Every cold air intake xyz promises an increase in horsepower, but they don't tell you that your car needs to be tuned for every aftermarket to get the maximum promised horsepower. So if it says +5 HP it's probably 2 HP, maybe 3 if you're lucky. But still, despite the few there are, I totally noticed it while driving. K&N is a highly respected brand and today I found out why. Worth every penny