Short Ram or CAI

[Memphis_Matrix]

What would be my best bet for an intake on my 2006 XRS, and what brand should I go with? I was thinking Injen CAI.

Also, does anyone know of any changes Toyota made on the 2006 Matrix XRS as opposed to the previous model years?

[Crazzyboy]

well, I'm no expert. but the 06 has an air pump thing where the CAI filter goes. so most dont fit. Cosmoracing fits for sure. I have a K&N short ram on my 06

[Memphis_Matrix]

Air pump, huh. That sounds like a good thing.

[chuckles]

i have a 06 xrs as well using the aem short ram, the one for an 04 non air pump...but u must mod one vaccuum line and that's it works great with no ses light!

[Crazzyboy]

::::Update to the 06 short ram. Cosmo racing provides an air pump air filter I believe for thier short ram. K&N I believe does not. Although I dont think it is required, its intake being before the air box in the stock set up. I bought a crankcase breather filter from K&N to plug the hole of the air pump just to be safe. Part # 62-1490. Bought it off thier website, and it just came today. Its a tad too small, so perhaps some rubber gromets from home depot will make it fit snug.

[joemaniaci]

I actually saw an air intake that had a fan built into it and it actually created one psi. Not much, but pretty good for something thats basically an electric turbo. Anyone know what its called?

[MatrixXRS]

Go CAI and do the air pump mod.

Go cosmo, the only thing you need to do is replace the filter with a good brand name like K&N or new AEM dry flow .

[TRXR4KDS]

MatrixXRS knows what he's talking about. I have the cosmo on my 05 XRS (same as 06 with air pump)

[Memphis_Matrix]

Originally Posted by MatrixXRS

Go CAI and do the air pump mod.

Go cosmo, the only thing you need to do is replace the filter with a good brand name like K&N or new AEM dry flow .

I looked at the stock intake and it has all sorts of crap hooked to it. If I go with the cosmo CAI, will all that stuff hook back up to something? I won't have extra wires hanging around, or have to plug holes?

Just want it right....you know. Also, when on cruise going down the highway at 75 or 80 mph, how noticably louder will it be in the car? I don't seem to hear much engine noise as it stands now.

[Never Enough]

I like the Injen Intake best myself. You would need #RD2076. No modifications needed.....you dont have to buy a "better filter" either.

[TokyoRacer]

For power. A SRI will always make more..it'll also always make more sound. The only thing a CAI has going for it is that if you're idling in bumper to bumepr traffic you may have a bit mroe HP then the SRI guy..also the CAI is more bling.

[Never Enough]

Originally Posted by TokyoRacer

For power. A SRI will always make more..it'll also always make more sound. The only thing a CAI has going for it is that if you're idling in bumper to bumepr traffic you may have a bit mroe HP then the SRI guy..also the CAI is more bling.

Thats not at all true. CAI's on average make around 2-3 hp more than the SR on the dyno. How can you think an intake sitting inside the engine bay sucking warmer air is going to make more HP? Show me some dynos proving this....I have some links below to back up my point....
What good does more HP do you if you're idling in traffic?
CAI is more bling? Where are you coming up with this stuff?

From AEM's website (using them because they provide dynos and have a CAI and SR available)
CAI - http://www.aempower.com/images/produ...corolla_hp.pdf
http://www.aempower.com/images/produ...trix-xr_hp.pdf
http://www.aempower.com/images/products/21466_hp.pdf

SR - http://www.aempower.com/images/products/22469_S_hp.pdf
http://www.aempower.com/images/products/22469_xr_hp.pdf
http://www.aempower.com/images/produ...466_xrs_hp.pdf

[TokyoRacer]

http://www.tprmag.com/issue/1/1_intakes.shtml

[TokyoRacer]

A SRI makes 2-3 more hp. The CAI however doesnt suffer heatsoak as much, so it only varies a few hp where as the SRI will vary much more. Also, how often do people that are 'racing' sit idle? Uusally you're moving so there is ltos of airflow udner the hood. I'm sure a moving car has a cooler engine bay than a stationary one. For drag racing, which is waht most people on here like to do..and SRI is the one to use.

[joemaniaci]

Theres another item you guys should talk about and thats the intake manifold. You ever notice that the car runs faster cold and then it is warmed up its not as powerful. You guys put so much emphasis on the intake yet if you touch your intake manifold when your engine is completely warmed up, the manifold is too hot to touch. I have the AEM CAI and it made a big difference, when the engine is cold it has enough power to where I get tire hop and wheel spin( at sea level, not in colorado anymore) but once its warmed up it can't anymore. I know some smart ass is going to say, "Well it gets warmed up anyway by the engine" But each port sucks in air which gets detonated before it has a chance to get heated by the engine itself. The air is in the manifold much longer than in the detonation chamber. I am thinking about replacing the metal gasket with a thick cardboard gasket which would hinder the heat going from the engine to the intake manifold. I was even thinking about putting a hood scoop right over the manifold, but thats a little extreme for how little gain it would help with.