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Old 08-04-2010, 08:11 AM   #1
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K & N air intake

Just installed last week a K&N intake maodel 63-1553, took about 25 min. love the sound and appears to work well with the dual exhaust. do notice a slight whistle at time but not bad at all.
MPG seems a bit better on the hiway, but if i was concerned about MPG id be driving a PRIUS, what fun would that be!
My next upgrade will be bumbers and winch. What type of bumbers would you recomend for a 2010 white Sahara. Looking for a concealed winch with fog lights. Do they make a good bumber in chrome? We have harsh winters in Saskatchewan and painted bumbers will show surface rust, have had the best luck over the years with chrome as it seems harder to scratch and always looks good.

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Old 08-04-2010, 08:28 AM   #2
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If they salt the roads a lot where you are, which I'd bet they do, you'll end up sucking in a good deal of it when it gets kicked up. The amount of dirt the K&N lets in isn't worth the couple of horsepower IMHO. I'd keep the tube and ditch the filter for an Amsoil EA filter. Just measure the opening on the filter and order one with the same size opening. They flow just as well, if not better, and don't allow nearly as much dirt past them. They really do work, I have used them in multiple vehicles.
The whistle you hear is probably air moving past the throttle blade. Does it only do it at certain throttle percentages? K&N filters do flow more air, so you are getting more air to the throttle body, but to do that, they also have to allow more dirt past. Then there's the risk of getting an over-oiled filter that will cover your mass air sensor with oil and causing your engine to not run right.
You might be fine and never have any issue. I have run them in the past and had some mass-air related issues with a brand new filter that was over-oiled from the factory. Give a K&N a good 10k miles and I bet you'll feel a gritty, oily residue building up on the inside of the inlet tube.

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Old 08-04-2010, 08:52 AM   #3
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Old 08-04-2010, 01:44 PM   #4
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Quote:
Originally Posted by Mr. Sinister View Post
If they salt the roads a lot where you are, which I'd bet they do, you'll end up sucking in a good deal of it when it gets kicked up. The amount of dirt the K&N lets in isn't worth the couple of horsepower IMHO. I'd keep the tube and ditch the filter for an Amsoil EA filter. Just measure the opening on the filter and order one with the same size opening. They flow just as well, if not better, and don't allow nearly as much dirt past them. They really do work, I have used them in multiple vehicles.
The whistle you hear is probably air moving past the throttle blade. Does it only do it at certain throttle percentages? K&N filters do flow more air, so you are getting more air to the throttle body, but to do that, they also have to allow more dirt past. Then there's the risk of getting an over-oiled filter that will cover your mass air sensor with oil and causing your engine to not run right.
You might be fine and never have any issue. I have run them in the past and had some mass-air related issues with a brand new filter that was over-oiled from the factory. Give a K&N a good 10k miles and I bet you'll feel a gritty, oily residue building up on the inside of the inlet tube.
Quoting this for emphasis and truth.
An oiled gauze filter is not your friend on a vehicle that will see service offroad.

Good discussion HERE about K&N filters.

And this recent thread too.
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Old 08-04-2010, 02:03 PM   #5
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Good info here... I posted about this the other day. I was thinking about getting a Volant CAI... same deal as K&N?

Would dropping in a Amsoil EA filter have a better throttle sound, or about the same as the paper one in the Jeep now?
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Old 08-04-2010, 02:35 PM   #6
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The Amsoil filters are quieter than the K&N, but they flow very well. You probably won't notice much of a difference in sound over the stock paper filter. I can't say for sure though, I'm sure every engine will react a little differently. I used them exclusively on the turbocharged Subarus I used to have, where the turbo needs as much flow as it can get to help it spool quickly. Unfortunately, they don't make a drop-in filter for the 3.8 Wranglers yet, or I'd already have one. AMSOIL Ea Air Filters - Nanofiber Technology

If the Volant uses oiled cotton gauze, then you'll run into the same issues. But, with the Volant, you get that nice box, which I would imagine keeps a lot of dirt away from the filter in the first place. If you're set on oiled gauze filters, I recommend a Green filter. Home
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Old 08-04-2010, 02:39 PM   #7
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Thanks Sinister... definitely not set on oiled gauze, just want a louder sound when I get on the throttle. So just partial to the Volant that I had in my old rig... wish I had some extra dough for that full Volant snorkel kit.
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Old 08-04-2010, 02:48 PM   #8
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If sound is all you want, have you tried removing the air silencer that's attached to your factory air box?
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Old 08-04-2010, 03:07 PM   #9
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No, didn't think the Wrangler had resonators... will definitely look into this.
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Old 08-04-2010, 03:23 PM   #10
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To be honest, I'm not 100% sure they all do either, but any car that uses an enclosed box for the air filter most likely has some sort of apparatus attached to it that when removed, increases intake noise.
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Old 08-05-2010, 07:40 AM   #11
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thanks for the advise. ive used the K & N in my 07 expedition since new and is still runing good and no problems. You do have to keep them clean but that is part of any good maintenance. Im still looking of a good rugged bumper system any ideas.
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Old 08-05-2010, 07:47 AM   #12
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i'm fairly new to jeeps, can't really recommend anything there. but, the saying holds true for all car parts, you get what you pay for!!
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Old 08-05-2010, 08:02 AM   #13
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Thanks, but should you happen to see a link please let me know.

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