I hear that a K&N Filter fits and replaces the Maxima air filter perfectly. Is that true and if so, how much horsepower will it add.

 

yes. 1-2 hp imo

 

I don't know if anyone's dynoed a K&N panel filter, but I know that they don't add much, if any, horsepower. The benefits are that they give quicker throttle response, and they last forever, so you'll save money over a long period of time. And, supposedly, they filter better than stock.

 

For the that much you can buy a used pop charger or stillen intake and get more power. However I say go with a CAI and get the most power.

 

It's true that the panel filter's main advantage is its reusability. The panel filter costs around $40-50. The cone filter costs around $120, and gives the engine a nice snarl when you gas it. The CAI gives yet more power, but you have to cut a hole in your underhood fender to mount the unit.

 

S&B sells an intake for ~$60...don't know anyhing off-hand(cept i have one and like it). I'll get yolu te #, etc when I'm up to it..or maybe someelse can:-P

 

0 performance gained by the panel, but I like to keep my filter clean, meaning reoil/clean every 5,000 miles. Why? It does affect the gas mileage. If I bought a new Nissan filter that often it would get more costly than the K&N.

 

I will sell it to you for 25 bucks shipped if you wanna try it out....it still looks perfect.....I used it for a week before i bought jwt pop

 

That sounds like a deal. Get that one, JUDE.