[rluck9277]

I was looking around and found that Injen makes a CAI for the 4-cylinder Malibu, it dosent have a heat sheild, and only improves performance 8hp, but it is made specifically for the Malibu and G6 with the 2.4L, here is the link....

http://www.aptuned.com/injen-malibu-g6-SP7031

I like that it comes with a dry air filter, instead of one of the oiled ones like K&N use, although I haven't had any issues with my K&N drop in air filter.

There had been a few mentions on here about a Magnaflow exhaust system. Well it looks like they are going to make a cat-back system for both 4-cylinder and V-6, and I emailed Magnaflow, and they are supposed to be avaliable in mid or end July. Here is the link to there website....

http://www.magnaflow.com/02product/shopdisplayproducts_cars.asp?make=CHEVROLET&model=MALIBU&year=2009

 

[Lgndryhr]

I have posted many times in different threads about that CAI. Link It is a complete waste of money. You are going to get a CEL P0101. That is in relation to the MAF and change in airflow. It does not like more than a 10% or 15% change. The K&N air filter are decent as long as you use them correctly and oil them correctly. I myself prefer dry filters just for peace of mind myself, but the wet air filters work just as good too.

As for the Magnaflow exhaust, I keep waiting on it. They've been saying for a little while now that it will be out soon, but keep pushing dates. I presume changing dates due to working on exhausts that will sell more. I plan on getting it for my car once it does come out and making it a dual exhaust on my I4.

 

[RYgoBOOM]

damn I wanted that Injen too

 

[DrivenDaily]

Guys, if you look you'll notice that you already have a CAI from the factory. If you want to smooth or alter the airflow characteristics you should be able to modify it and not buy a code-generating CAI kit. I plan on removing those "growths" on the tubes and enlarging the intake snorkel (or removing it). I'm sure the sound will change but that's what the "growths" are for: modifying the sound. I'm old school gearhead - I like to hear the air whistling and growling. It not only sounds neat, it tells a story that no gauge can.

 

[RYgoBOOM]

Guys, if you look you'll notice that you already have a CAI from the factory. If you want to smooth or alter the airflow characteristics you should be able to modify it and not buy a code-generating CAI kit. I plan on removing those "growths" on the tubes and enlarging the intake snorkel (or removing it). I'm sure the sound will change but that's what the "growths" are for: modifying the sound. I'm old school gearhead - I like to hear the air whistling and growling. It not only sounds neat, it tells a story that no gauge can.

can you explain more of this in detail..interested

 

[Mali27]

All intakes are designed as a "cold air intake" technically because it is constricted in a box and typically have a funnel of some sort acting as a ram air effect near the front bumper. The second you go ahead and throw on a aftermarket filter and ditch the box, you just increased the amount of heat getting into your engine which isn't good for power, the colder the air the better. Power wise, the most effective thing to do is put in a performance filter replacement (K&N, etc.) and do as DrivenDaily said and just replace the stock intake piping as that is really the only choke in the intake system with all the odd bends and snorkling sectioins.

 

[MR.2010LT]

Or you can custom the OEM box to fit the aftermarket CAI inside the box then your set

 

[DrivenDaily]

can you explain more of this in detail..interested

All intakes are designed as a "cold air intake" technically because it is constricted in a box and typically have a funnel of some sort acting as a ram air effect near the front bumper. The second you go ahead and throw on a aftermarket filter and ditch the box, you just increased the amount of heat getting into your engine which isn't good for power, the colder the air the better. Power wise, the most effective thing to do is put in a performance filter replacement (K&N, etc.) and do as DrivenDaily said and just replace the stock intake piping as that is really the only choke in the intake system with all the odd bends and snorkling sectioins.

Or you can custom the OEM box to fit the aftermarket CAI inside the box then your set

Modding the OEM box would allow the cold air to continue to be used instead of the filter-behind-a-shroud.

There has been some talk of the oil from oiled filters (K&N, Spectre, etc.) depositing onto the MAF, causing issues. I would tend to think that the mfr. oils them in a way that allows it to soak in properly and they don't use too much. It's more likely when users clean and re-oil them that too much is used, and possibly it's put back in service too quickly as well. I know that's conjecture - I have no real data to back it up. But it's also reasonable.

Back in the days of carburetors one of my cars had a 390 4-V. The air cleaner housing had a single snorkel that was smallish. I tossed that in favor of a full-round chrome filter. I could hear the whistling of the air in the primaries, and when the secondaries opened (vacuum) I could hear the growl more prominently with the new filter. The noise didn't help, but hearing it put me more in tune with my engine.

If you look at the stock air tube there's a small L-shaped add-on right at the bend near the radiator. That's there to modify the sound. That's coming off. The snorkel on the box is small. I'll make that bigger, and if I can find a way to put it in the high-pressure air stream I'll get a little ram air action. Probably won't make a big difference, but lots of little things make up bigger things. "The drop of water refuses to believe it is responsible for the flood." My biggest change is the flat part of the tube right before the throttle body. I'll be working on a way to make it full size and a smooth bend internally. Not sure when all this will happen, but I'll post up pics, etc. when done.

 

[RYgoBOOM]

sounds good ^^^^