It's been reported here that folks achieve higher horsepower, and in many cases (when they lay off the fun pedal) increased fuel economy with various makers' CAI's. If this is truly the case, why doesn't Nissan deliver cars w/ intakes more similar to a CAI? Wouldn't they *love* to be able to claim higher mileage while providing more horsepower at the same time?

Is there something inherently bad about them, leading to engine problems or something?

Anyone?

 

They're loud. The stock intake is restrictive mainly so it's quiet.

 

not everyone likes their car to growl...

remember maximas are in the family car category..

thats why there is maxima.org
we're here to make a REVOLUTION

 

They tend to get pretty loud. I wouldn't want my car to be loud w/ baby in the car.

 

Scopium: If this is a REVOLUTION then we are gonna have to avoid saying the word Maxima in conjunction with the Pphrase "Family Car". So lets try Sports Sedan from now on ok...........LOL
WHEELMAN

 

LOL.. ok..let me try.. SSSporrt Seeedaan ... oh ok..
i got it

let the REVOLUTION continue

 

Another downside is a possible lean condition. Without an ecu upgrade, it is possible that the ecu will not add enough fuel to compensate for the increased air flow. My dyno is in the dyno forum it is very lean with the Injen on. Hopefully, the knock sensor will prevent any damage from detonation but who knows if there is a long term effect?

 

My parents hate going out in my car. They say its too loud, even with the radio. Specially my grandma. So goes nutz