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-   -   K&N 63 Series vs 77 Series (

Seagull96 08-20-2013 02:46 AM

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..

jeepster1947 08-28-2013 05:33 PM

Also watching for an answer, Seagull....but I have another related question : why would 15 states declare the 77 series not street legal??

tjkj2002 08-28-2013 09:57 PM

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.

tommudd 08-28-2013 10:30 PM

what he said
save the money you'd waste on a K&N and get some real toys

streetglideok 08-28-2013 10:42 PM

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.

Drednot 08-29-2013 02:40 AM

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.

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