Are there any power differences between the stillen intake and the cai.
Is it not worth it to get the cai? Should i just pay less for the stillen and expect the same results? What about the pop charger?
Im a confused lil boy
someone show me the light

 

Both will give you some gains, due to the fact that they are significantly increasing the amount of airflow, but the CAI will definitely give you a little more, due to the fact that it is receiving cool air from the wheel well. The cooler the air, the denser it is, thus creating more combustion/more power. I don't know first hand, because I myself only have the popcharger (exactly the same as the Stillen one). That definitely does see some gains, though, but not drastic. It just feels significantly better on the top end. Either way, you will notice some differences. Actually, I have heard that tests have been done, and at speeds, there is not even that significant a difference between the Stillen/JWT and the CAI because the air is circulating enough under the hood anyway. Just what I've heard. Good luck on your decision.

 

Compare the Blue SI graph with the Red CAI graph, and ignore the Black UPRD ECU graph for the purpose of this thread.

The Stillen Intake (SI) makes more power on higher RPMs than the CAI, and the above Clayton dyno graph and other tests conducted bare this evidence, including comparative Mass AirFlow sensor readings showing a higher maximum flow (measured with an Apex'i S-AFC) with the SI over the CAI. These all bare additional evidence that the shorter track with the SI flows better on the top end.

The only advantage the CAI may have over the SI is from 0-30MPH, where power is not the main concern, rather the main concern is traction. Beyond 30MPH, the car would be moving fast enough to circulate fresh air from underneath the car to supply more than enough fresh cool air for the motor to ingest and generate power.

The reason the CAI doesn't fare as well as the SI on high RPMs is because of extra bends, and longer tubing which lowers the resonance frequency of the intake (backwave sound pressure that we hear as intake roar).

Now I know many people will jump up and start hollering and giving this and that opiniontelling you and me that the CAI will make more power. But it's all that, opinions and I have yet to see any factsto back up those claims.

For more on this, go to http://clubs.yahoo.com/clubs/nissanmaxima and search through the message archives on discussions from around August of 2000 to read about it for yourself.

 

thanks for the help
ill prolly end up get the si since it looks like it gives the same amount if not a lil more power than the cai. And also that its considerably cheaper.
Anyone know where a good place is to order one of the stillen intakes?

 

Wazup Matt
It is Brett from the North side.
The person you want to talk to is Got Rice?
He is professional and is a Stillen Rep.
Just do a search for his member name and drop him an email

Take Care