It feels like my Armada has lost power after I changed the air filter. I installed a k&n air filter and thought I was going to get more power. It feels as if my car is struggling to accelerate when I floor it. I also did the stock air box mod. This was my first time flooring the car. I bought this car a month ago. It is a 2010 model year. It is a great car, but it feels like it became slower. I feel like I didn’t install the filter correctly and the air box is not closing all the way. I see that it is not sealed properly when I closed it. I see it looks open. Also the stock air box mod added power but I did this to get more power. Also I cut the snorkel almost all the way and left it open a little bit. There is also a hole on the snorkel. Overall it is a great car but I feel like there is not a lot of power after changing the filter. I am worried if I damaged it. I want more power on my Armada!