K&N 63 Series vs 77 Series - JeepForum.com
 
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post #1 of 6 Old 08-20-2013, 01:46 AM Thread Starter
Seagull96
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2010 KK Liberty 
 
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K&N 63 Series vs 77 Series

I was just looking around and pretty much every website advertises that the K&N 63 series will only fit up to 2009. Is there any reason why it wouldn't fit on a 2010+?

If I was getting a CAI I'd imagine I'd rather have the plastic option compared to a metal one that would soak up heat..

http://www.summitracing.com/parts/kn.../model/liberty

http://www.jegs.com/i/K%26N/599/77-1...FZKi4AodK0sAow

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post #2 of 6 Old 08-28-2013, 04:33 PM
jeepster1947
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Also watching for an answer, Seagull....but I have another related question : why would 15 states declare the 77 series not street legal??
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post #3 of 6 Old 08-28-2013, 08:57 PM
tjkj2002
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Your stock airbox is a CAI,both of those you listed are not and will draw heated air from under the hood while the stock box draws cool air from the grill/hood area.


Also a good paper filter is much better then the K&N for a daily driver.If racing then yes you will benifit froma K&N but on a daily driver will only cause issues in 30-60k miles with all the extra dirt it's allowing into the engine.

'02 Liberty sitting on 35" tires,HP44,RockJock60,and AtlasII t-case
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post #4 of 6 Old 08-28-2013, 09:30 PM
tommudd
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^^^^^^
what he said
save the money you'd waste on a K&N and get some real toys

04 KJ 4.5 JBA lift, 03 KJ 2.5 JBA coilovers,
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post #5 of 6 Old 08-28-2013, 09:42 PM
streetglideok
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If you want the effect of allowing dirtier air into the engine, and make the 2hp increase you get, save the money and take out your air filter completely. Not a lot different despite what K&N claims, which is put out by marketing teams. Take a google at splitfire spark plugs and the legal ills they faced. Don't believe the hype.
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post #6 of 6 Old 08-29-2013, 01:40 AM
Drednot
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Absolutely as stated above. Oiled filters are a gimmick that allows a grimy build up inside the intake and on sensors. Take a good look at how the air flows through your factory air box and you will see its cold air intake.

What can help a bit, though, is to completely cover the air box and air tube with foil backed bubble wrap insulation to keep the intake temp as low as possible.

91 YJ Sahara, 4.0L, AX-15/NP231, D30/D35@3.07
12 Cherokee 4x4,3.7L,42RLE/MP1522, D30M/8.25@3.73
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