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Question re: K&N Air Filter installation

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Old 04-03-2018, 11:09 AM
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Default Question re: K&N Air Filter installation

I plan on replacing the stock air filter on my XK8 with a drop-in K&N Panel Air Filter and was wondering if anyone had to remove the air box to do it. I'm thinking the K&N installation is just that. A simple swap out but the K&N instructions say otherwise. The instructions show an additional rubber seal which needs to be adhered to the air box lid and to do that the box needs to be removed. Is that necessary? Could someone that has done this before chime in and let me know before I start wrenching away? Thanks in advance and sorry if this sounds like a lame question and I hope I don't start a discussion on K&N air filters.
 

Last edited by SLazz; 04-03-2018 at 02:23 PM.
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Old 04-03-2018, 11:14 AM
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If you get the right filter for your car it will fit without any modification. I have them in both of my cars.
 
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Old 04-03-2018, 11:43 AM
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Ditto here--simple 2 minute swap/drop in.

Doug
 
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Old 04-03-2018, 12:00 PM
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Originally Posted by SLazz
and I hope I don't start a discussion on K&N air filters.
No worries about that on this website. You're free to waste your own money any way you see fit
 
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Old 04-03-2018, 12:16 PM
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the filter frame might be thinner and requires a spacer gasket to make a good seal. you do not have to remove the air-box to do this. simply remove the cover by separating it from the intake runner; there is a clamp. i find it easier to remove the two bolts attaching to the throttle body, the full load breather and the MAF plug, off with the whole assembly, a minute to do. don't lose to seal at the throttle body. the box sealing clip under the intake runner is a pain, made a tool out of a paint stick.
 
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Old 04-03-2018, 12:25 PM
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The one that came with my 98 is cone shaped and simply sits in air box connected to tube, no cover on filter box. Think its a K&N.
 
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Old 04-03-2018, 12:59 PM
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Looks like a straight drop in procedure will do the trick. Thanks to almost everyone.
 

Last edited by SLazz; 04-03-2018 at 02:25 PM.
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Old 04-04-2018, 09:54 AM
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Originally Posted by Terrific
The one that came with my 98 is cone shaped and simply sits in air box connected to tube, no cover on filter box. Think its a K&N.
The cone shaped ones are typically a warm air inlet too
 
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Old 04-04-2018, 11:31 AM
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Originally Posted by SLazz
I plan on replacing the stock air filter on my XK8 with a drop-in K&N Panel Air Filter and was wondering if anyone had to remove the air box to do it. I'm thinking the K&N installation is just that. A simple swap out but the K&N instructions say otherwise. The instructions show an additional rubber seal which needs to be adhered to the air box lid and to do that the box needs to be removed. Is that necessary? Could someone that has done this before chime in and let me know before I start wrenching away? Thanks in advance and sorry if this sounds like a lame question and I hope I don't start a discussion on K&N air filters.
 
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Old 04-04-2018, 11:37 AM
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^^^ Isn't that an MoT failure?
 
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Old 04-04-2018, 12:18 PM
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If it is thay have missed it for the last 8years lol
 
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Old 04-04-2018, 02:25 PM
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I put one in my 2000XK8 and it had way too much oil. Had to clean the mafs. Washed the filter and oiled it with less oil and now it's fine.
 
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Old 04-04-2018, 03:15 PM
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It's my understanding the XK8 and XKR already has a stock cold air intake set up. The cone style intakes I see in some of these cars sit in the engine bay so I would think all they do is suck in hot air which can degrade engine performance. I could be wrong but then again........
 
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Old 04-04-2018, 03:41 PM
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Originally Posted by SLazz
It's my understanding the XK8 and XKR already has a stock cold air intake set up. The cone style intakes I see in some of these cars sit in the engine bay so I would think all they do is suck in hot air which can degrade engine performance. I could be wrong but then again........

In this case you're right. The cold air intake function has been lost.
 
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Old 04-04-2018, 05:01 PM
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All I can say is that I have driven the car with this and the stock filter on and both feel just the same to me so i can't really say there is a downside ,you do get a lovely rasping sound on acceleration though,wouldn't advise anyone to buy one for the difference it makes unless it's a bargain buy as this was
 
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Old 04-04-2018, 05:26 PM
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Originally Posted by graham11
All I can say is that I have driven the car with this and the stock filter on and both feel just the same to me so i can't really say there is a downside ,you do get a lovely rasping sound on acceleration though,wouldn't advise anyone to buy one for the difference it makes unless it's a bargain buy as this was
Did you install the K&N Filter into a Jag XK? And if so, did you install an additional rubber seal into the lid? Or was the filter a simple swap out. I ask because my K&N Filter came with an additional rubber seal in the packing carton and I'm not certain if it is needed.
 
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Old 04-04-2018, 05:39 PM
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If you received the right filter for your car it should not require an additional seal however, things have a tendency to change with time. You should be able to identify if an additional seal is requires simply by looking at the old and new filters together. FYI I prefer the cold intake!
 
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Old 04-04-2018, 05:41 PM
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Originally Posted by SLazz
Did you install the K&N Filter into a Jag XK? And if so, did you install an additional rubber seal into the lid? Or was the filter a simple swap out. I ask because my K&N Filter came with an additional rubber seal in the packing carton and I'm not certain if it is needed.
Post no. 9 shows a different arrangement from the factory airbox.
 
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Old 04-04-2018, 05:42 PM
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Originally Posted by graham11
If it is thay have missed it for the last 8years lol
That's very interesting.
 
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Old 04-04-2018, 05:46 PM
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Originally Posted by NBCat
^^^ Isn't that an MoT failure?
Why would it be?
 


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