Which air filter do I need for my Injen CAI?

[braz989]

I am new to all of this and I was just wondering which air filter I would need to replace the old dirty one that the owner before me had on the Injen CAI? I know it is an oiled one that he has, but I am just going to replace it for a new dry one and save the oiled one to be cleaned and used later. My question is, do I get the 3 inch filter? Can someone link me to the filter I need? I do not have access to ramps or anything because I am still away at school, so I can't really check.

As for removing the old filter, can I do it by just putting the car on ramps? Removing the left tire? Or do I have to do something complicated like remove the bumper? Thanks guys!

This is for a 2007 FG2 Si.

[trutech74]

Originally Posted by braz989

I am new to all of this and I was just wondering which air filter I would need to replace the old dirty one that the owner before me had on the Injen CAI? I know it is an oiled one that he has, but I am just going to replace it for a new dry one and save the oiled one to be cleaned and used later. My question is, do I get the 3 inch filter? Can someone link me to the filter I need? I do not have access to ramps or anything because I am still away at school, so I can't really check.

As for removing the old filter, can I do it by just putting the car on ramps? Removing the left tire? Or do I have to do something complicated like remove the bumper? Thanks guys!

This is for a 2007 FG2 Si.

I would imagine any filter with the same size coupler would work. Vibrant has some affordable ones or just check ebay maybe for one of those aem dry filters. I was able to get my filter off of the car sliding it out by the wheel. I had to take the battery out and move the coolant overflow to get my hands in there. Might be tough to replace the filter that way but you could try it.

[braz989]

Originally Posted by trutech74

I would imagine any filter with the same size coupler would work. Vibrant has some affordable ones or just check ebay maybe for one of those aem dry filters. I was able to get my filter off of the car sliding it out by the wheel. I had to take the battery out and move the coolant overflow to get my hands in there. Might be tough to replace the filter that way but you could try it.

Ok, do you know what size that would be though?

[trutech74]

I'll be home in about an hour ill get all the dimensions on mine when I get there

[Dar-Dar]

This is what I got to replace my oiled Injen filter. This dryflow filter is the same filter used in the new injen CAIs for the 2006+ Sis. Filter Specs: 3.00" Filter 6" Base / 5" Tall / 5" Top



K Series Parts.com Injen 3.0" Dry Filter

[PinkDiamondSi]

I used AMSoil cone filter and am very happy.

[trutech74]

That picture of the blue filter is exactly it compared to the one mine came with

[braz989]

Thanks a lot for the info guys, I appreciate it. I'm worried about how I am going to get this old one off though....

[Dar-Dar]

Remove the bumper. Lol. There's a DiY here somewhere.

[braz989]

Originally Posted by Dar-Dar

Remove the bumper. Lol. There's a DiY here somewhere.

I REALLY hope I don't have to do that lol.

[Dar-Dar]

You can also move the wheel well by the driver side front tire.

[PinkDiamondSi]

That's what I did piece of cake

[braz989]

Originally Posted by Dar-Dar

You can also move the wheel well by the driver side front tire.

Hmm this may work, just pop off all of the plastic blocking it? Shouldn't be too difficult, thank you!

Is there any benefit having an oiled filter of a dry one?

**UPDATE**
Ordered the one you guys posted and a hydroshield for $70 shipped, not bad! I will let you know how it goes!

[TiredSi]

You are out of your mind if you don't oil the filter. How these so-called performance filters get higher flow (per surface area) is by opening up (enlarging) the air passages. This lets in more crap. The best way to catch that stuff is oil because it acts like a magnet to those small particles. Many OEMs have switched to oiled filters to get higher air flow with improved filtering.

You can get a K&N oil and cleaning kit at Autozone for about $11. I just cleaned and oiled my Injen (dry) filter.

I used to be an engineer for an OEM supplier of air intake systems - I know what I'm typing about.

[braz989]

Originally Posted by TiredSi

You are out of your mind if you don't oil the filter. How these so-called performance filters get higher flow (per surface area) is by opening up (enlarging) the air passages. This lets in more crap. The best way to catch that stuff is oil because it acts like a magnet to those small particles. Many OEMs have switched to oiled filters to get higher air flow with improved filtering.

You can get a K&N oil and cleaning kit at Autozone for about $11. I just cleaned and oiled my Injen (dry) filter.

I used to be an engineer for an OEM supplier of air intake systems - I know what I'm typing about.

So I should have just cleaned mine instead of getting a brand new one?

[Dar-Dar]

It's always good having 2 filters anyway. It takes a quick swap when you need to get one filter cleaned.

[Maldito X]

How often are you guys cleaning your filters? I installed mine about 8k miles ago and havent cleaned it yet.

[Dar-Dar]

I check mine every 4 months or 3 times a year.

[braz989]

Originally Posted by Dar-Dar

It's always good having 2 filters anyway. It takes a quick swap when you need to get one filter cleaned.

True, I'm just driving home from school so it's the only time I have access to ramps and tools. I'll eventually clean and oil my old one and swap it out a while later.


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[Jcrosse]

Well currently i have an K&N rechargable filter.. im planning to buy the Injen CAI