Cold air intake

Is it worth it to install a aircharger system or should I just replace the air filter with the kn air filter? I have a 2004 grand prix gt1. Thanks for your input.

Hey I have Grand prix 2004 Gt2 and I have a kn air filter.It is okay,gives a good sound.But I am also getting a hood scoop and I going to put Ram air into the car.But nothing of this will work problary if i don´t open the exhaust.You will always have to get rid of the air witch comes into the machine before you take more air into it.Hope that this will help

Thanks, I do plan on getting some type of high flow catalytic converter