Stock Air Filter
Platinum Member
Joined: 05-09-2006
Posts: 6,805
From: "Upland" Mesa, Arizona
I think....
He means leaving the stock intake and accumulation box on, removing the SMALL OEM filter from the interior, and installing a filter at, or near the end of the intake hose.
Might be an interesting concept, since increasing filter area is a recognized method of gaining several HP's. In fact, I have heard a couple of people say that is where they believe the HP gain comes from on the aftermarket systems...increased filter area and minimizing intake restriction....not really the design of the tube and/or box.
So, now you can start the flaming.
He means leaving the stock intake and accumulation box on, removing the SMALL OEM filter from the interior, and installing a filter at, or near the end of the intake hose.
Might be an interesting concept, since increasing filter area is a recognized method of gaining several HP's. In fact, I have heard a couple of people say that is where they believe the HP gain comes from on the aftermarket systems...increased filter area and minimizing intake restriction....not really the design of the tube and/or box.
So, now you can start the flaming.
Senior Member
Joined: 04-30-2006
Posts: 9,149
From: Maryland Heights, MO
I think....
He means leaving the stock intake and accumulation box on, removing the SMALL OEM filter from the interior, and installing a filter at, or near the end of the intake hose.
Might be an interesting concept, since increasing filter area is a recognized method of gaining several HP's. In fact, I have heard a couple of people say that is where they believe the HP gain comes from on the aftermarket systems...increased filter area and minimizing intake restriction....not really the design of the tube and/or box.
So, now you can start the flaming.
He means leaving the stock intake and accumulation box on, removing the SMALL OEM filter from the interior, and installing a filter at, or near the end of the intake hose.
Might be an interesting concept, since increasing filter area is a recognized method of gaining several HP's. In fact, I have heard a couple of people say that is where they believe the HP gain comes from on the aftermarket systems...increased filter area and minimizing intake restriction....not really the design of the tube and/or box.
So, now you can start the flaming.
Makes sense, if ya can make it work. Not much room under the hood, especially with the cover.
Senior Member
Joined: 01-13-2006
Posts: 1,059
From: Tucson, AZ
Putting a filter into the Pass side fender is basically impossible without using a .75" pipe. Take the stock breather hose off and reach into there. Its barely enough room to remove the headlight bulb when it goes out. I have tiny little girl wrists and its a PITA. When I made my cold air system this was what I had looked at but even with small 2" piping I couldn't make it between the fender lining and the backside of the headlight. Now I have 2.5" piping dropping down under the ECM and into the driver's fender behind the foglight. Works wonders!
Senior Member
Joined: 01-27-2006
Posts: 320
From: Dublin, California
It only took about 20 Min's! The key is to understand that(THE ENGINE COVER IS THE AIR BOX)-REMOVE IT FROM THE CAR!(2 screws=1.clamp to the throttle body.2.larger star screw holding the air box on) & unplug the air sensor above the throttle body.There 2 female rubber connector that fit over 2 metal male receivers mounted to the cylinder head.(this secures the air box in the rear=gently pull & it will release the air box)
Perhaps someone can verify if the star screw really need to screwed off..BTW, I used the directions from SoCalHHRs site when I installed my CGS. It does not mention anything about removing any star screws to remove the housing.....did I miss anything???
Senior Member
Joined: 10-14-2005
Posts: 5,359
From: SoCal
I think the above post was written a bit confusingly; I'm sure he's talking about unscrewing the star screws (Torx), to change out the stock air filter element.
No torx screws need to be touched to pull the air cleaner housing - but if you are replacing your stock element, you will need to remove them.
Hope it helps,
No torx screws need to be touched to pull the air cleaner housing - but if you are replacing your stock element, you will need to remove them.
Hope it helps,
Member
Joined: 02-19-2007
Posts: 64
From: Fort Lauderdale,Florida
Hi All,Well I have a 2007 LS 2.2 auto and just installed a K&N air filter a few days ago......WELLLLLLLL WOW WOW WOW the BUZZING/WHINING engine sound has "GONE AWAY"!?!?!? I can't beleive MY EARS!! ALSO a NICE JUMP IN P~O~W~E~R and a MUCH FASTER TAKEOFF,HOLY MACERAL I REALLY AM IMPRESSED WITH THIS AIR FILTER....YOU ALL GOTTA GET ONE,PERIOD!!.....nO mORE BUzZzZzZING/YOWSA-YOWSA-YOWSA ...IT REALLY WORKS....Now an EVEN MOE HAPPY HHR OWNER,Grand-Pa De and His LoRider
Joined: 04-26-2007
Posts: 3
From: Los Angeles
More tips
When you replace the air filter and are ready to refit the housing, please keep this in mind ...1) turn the air cleaner housing right-side-up
2) clamp the fiber intake hose back on and tighten
3) be sure the clamp notch is properly placed on the hose
4) screw on the MAF sensor
5) fit the assembly back on it mounts
6) clamp the rubber intake hose on and tighten
I found out the hard way that this is the easiest method.