I've just installed the K&N Air Charger and have a couple of comments and questions. In general installation went smoothly. I didn't care much for the removal of the two valve cover bolts without providing torqing specs for the re-installation. The installation of the edging was very difficult.
Question: The instructions indicate I should put the HC trap back in the CAI. There seems to be an opinion on this board that it can be removed. For those who installed a K&N CAI did you leave your HC trap in or out?
I left it in, for now, but I was going to leave it in for a bit and then remove it in a couple of months and see if there is any difference in fuel economy. I've already notice quite a difference already with it in. I also thought the same thing about the torque of the two bolts and with edging. I grin from ear to ear everytime I drive it now with the extra HP and it sounds even better now too. Great investment.
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2005 Redfire GT Premium, IUP & ICAP, 5-speed, anti-theft, and Shaker 500 Add-ons; Ignition Start Button, Blackout Panel,18" Casino rims by American Racing, Eibach Pro-kit, Roush Hood Scoop, Rear Quarter Louvers, Rear Spoiler, Front Fascia, Rockers, Billet Strut Tower Caps, Oil Cap, Rad Cap, Pedals, Painted Mirrors, 20% Tint, Flowmasters,
Roushcharger received and installed, just waiting for Spring...
I've just installed the K&N Air Charger and have a couple of comments and questions. In general installation went smoothly. I didn't care much for the removal of the two valve cover bolts without providing torqing specs for the re-installation. The installation of the edging was very difficult.
Question: The instructions indicate I should put the HC trap back in the CAI. There seems to be an opinion on this board that it can be removed. For those who installed a K&N CAI did you leave your HC trap in or out?
Manufacturers recommend to leave it in. If they say to leave it in you could mess up the warrantly for the K& N and for Ford. Ford could possibly have a problem with the warranty if the filter is left out. They do however warranty any engine troubles with a "properly installed" CAI.
I agree with you on all points regarding torqueing pressures and difficulty with putting the edging on. I love the added HP and sound. Definitly makes a difference.
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05' GT Premium, Triple Black, Hurst Short Throw Shifter, DiabloSport Performance Tune for 93 Octane, FRPP Spring Lowering Kit, Auto Meter Gauges and Tach. Light, White 10" Rally Stripes, K & N CAI, White Faced Steeda Gauges, 8" Shortie Ant., 18" Chrome Deep Dish Rims with Toyo TS-1S's, Strut Tower Brace, Borla Catback Exhaust System, Red Line Tuning Hood Lift Kit, Eclipse AVN 5500 Nav. System, 6.5" kappa speakers, 12" Subwoofer, 500w Kicker Amp., 3.73 Yukon Gears
It's probably not even in there. I did not have one. Everyone else is taking them out with no problems. But, it's your car.
There is no filter with the K & N kit. Your supposed to remove the stock one from the existing tube on the car than insert it in the K & N. It aint easy getting that thing out either.
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05' GT Premium, Triple Black, Hurst Short Throw Shifter, DiabloSport Performance Tune for 93 Octane, FRPP Spring Lowering Kit, Auto Meter Gauges and Tach. Light, White 10" Rally Stripes, K & N CAI, White Faced Steeda Gauges, 8" Shortie Ant., 18" Chrome Deep Dish Rims with Toyo TS-1S's, Strut Tower Brace, Borla Catback Exhaust System, Red Line Tuning Hood Lift Kit, Eclipse AVN 5500 Nav. System, 6.5" kappa speakers, 12" Subwoofer, 500w Kicker Amp., 3.73 Yukon Gears
There is no filter with the K & N kit. Your supposed to remove the stock one from the existing tube on the car than insert it in the K & N. It aint easy getting that thing out either.
For those who installed a K&N CAI did you leave your HC trap in or out?
I was referring to the HC probably not being there.
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2006 GT Premium, Vert, Auto, Legend Lime/Parchment, Parchment Top, CDC light bar, chrome taillight bezels, interior and engine billit, Hireman flamed plenum and grille pony, seq tail lights, JLT CAI, CDC Classic chin spoiler, SCT2 93 tune, Redline hood lift elite, 18" Chrome bullits on Yoko's, Pony flag Head Rest Embroidery,California Dream Hood, Flowmasters.
2007 Shelby GT 500. Red vert black top.
If you have an HC trap, you should leave it in, or transfer it to the new intake. The older 05's have them in. If you remove it without a tune, you can mess up the air/fuel mix and thus, the engine. I heard the 06's and some of the later 05's don't have the trap, but the computer has been tuned for the deletion. I would definitely transfer the trap into the K&N intake tube. You'll get more air into the engine without it, but you could mess the engine up.
If you have an HC trap, you should leave it in, or transfer it to the new intake. The older 05's have them in. If you remove it without a tune, you can mess up the air/fuel mix and thus, the engine. I heard the 06's and some of the later 05's don't have the trap, but the computer has been tuned for the deletion. I would definitely transfer the trap into the K&N intake tube. You'll get more air into the engine without it, but you could mess the engine up.
So I didn't transfer the HC trap. The car runs great. No check engine ligh. Is the computer compensating for the extra air? Isn't that what the mass air sensor is for? Sense the amount of air comming into the engine and make proper adjustments? If the car was running too lean wouldn't the check engine light come on?
...I didn't care much for the removal of the two valve cover bolts without providing torqing specs for the re-installation. The installation of the edging was very difficult.
Does anyone know the "correct" torque of these valve cover bolts? Can someone please post them here on the forums?
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2005 Sonic Blue V6 Mustang Premium Convertible w/parchment top, Sport Appearance Package, 18" AR Casino Chrome Rims, 255R45 Toyo Proxies ST, Black Ceramic Painted Calipers w/Decals (H/T), K&N CAI, Magnaflow Dual Exhaust...Future Mods: Eibach Pro Springs, Vortech Procharger S/C
There shouldn't be need of a tune to remove the HC trap. When Ford first removed them someone on here talked to a tech who said that the program was not modified. The only reason why tunes are needed fro a lot of CAI systems is because the alignment of the MAF is not correct. On CAI systems that were properly designed no tune is necessary.
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05 vert GT premium, any color you want as long as its black, 5spd, shaker 500, 18" Chrome Bullits wrapped with KDW2s 255/45 up front and 285/40s bringing up the rear, K&N CAI, Diablosport Predator 91 Octane tune, Pioneer AVIC-D3 w/Bluetooth XM IPOD, Hireman Flaming Pony, 8" antenna, Smoked lenses all around, Webelectric sequential turn signals, Redline hood struts, Hurst short throw shifter with T-handle, Bassani off-road x-pipe and axle-backs
Just got the K&N AirCharger kit and I have a question. Is the filter it came with ready to install or do you need to prep it first with oil/recharger kit? The kit doesn't come with the recharger kit so I assume it's ready to go out of the box. The outside of the box talks about the filter lasting so long, blah, blah, and mentions oil; but none seems to be in the kit. Do I need to do this first? Any input? Also, did anyone ever find any torque numbers for the bolts that are removed and reused?
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"If you can read this...thank a teacher;
Since it's in English..thank a Soldier!"
2005 Sonic Blue V6 Mustang Premium Convertible w/parchment top, Sport Appearance Package, 18" AR Casino Chrome Rims, 255R45 Toyo Proxies ST, Black Ceramic Painted Calipers w/Decals (H/T), K&N CAI, Magnaflow Dual Exhaust...Future Mods: Eibach Pro Springs, Vortech Procharger S/C
Last edited by KiLLeR_WoMBaT; 11-16-2005 at 10:32 AM.
Reason: Frozen fingers....
Found this for you FWIW <<<<<<<The proper torque spec is 89 inch pounds for the valve cover bolts. If use anything larger than a 1/4 inch ratchet with a 4 inch handle you can break it off. No too mention using a impact wrench of air wrench can break it just as easily.>>>>>>
I Also noticed when I opened your hood that you are missing a valve cover bolt on the passenger side sir.
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2006 GT Premium, Vert, Auto, Legend Lime/Parchment, Parchment Top, CDC light bar, chrome taillight bezels, interior and engine billit, Hireman flamed plenum and grille pony, seq tail lights, JLT CAI, CDC Classic chin spoiler, SCT2 93 tune, Redline hood lift elite, 18" Chrome bullits on Yoko's, Pony flag Head Rest Embroidery,California Dream Hood, Flowmasters.
2007 Shelby GT 500. Red vert black top.
K&N CAI Install questions 
