is there any difference from regular after market air intake and an after market cold air intake
Nope. Nor is there any difference from an aftermarket intake, vs a stock one. Except you waste your money with one. It's been proven thousands of times. An intake doesn't provide enough horsepower to make a difference, or, in fact, even be noticeable to the driver. It's a complete waste of money. You can get the same gain by getting a tuneup.
K and N are made of cotton and allow your engine to breath easier allowing more horsepower and better fuel economy. compare it to breathing like norman would be the cold air to breathing threww a straw would be the other air filter
