IS F (2008-2014) Discussion topics related to the IS F model

Taking one for the team to test out the new K&N intake.

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Old 04-25-09, 12:58 PM
  #31  
ISFer
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Wow, 28 hp would be quite a 'feat'.

Typically, this type of intake would net you 5-6 hp and I would not expect much more.

Having said that, if someone dynos with even a 20 hp increase, I'll eat my words (then call K&N)

C.
Old 04-25-09, 02:21 PM
  #32  
LexISguy
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Originally Posted by casper10
https://www.clublexus.com/forums/clu...take-sale.html

There appears to be some significant gains on the ISF and I want to know if anyone has had the chance to try one or are they too new?

K&N R&D must be pretty extensive to produce the extra power they are claiming?

Thanks

There are a couple forums members who have placed orders on the intake. The'll dyno and give us there impressions.
Old 04-25-09, 03:18 PM
  #33  
550fresh
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Default no check engine light with my k&N

so far gas mileage is pretty much the same it says tank average 19.8......
Old 04-25-09, 05:10 PM
  #34  
ISF-88
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Originally Posted by 550fresh
so far gas mileage is pretty much the same it says tank average 19.8......

Nice, can't wait til mine arrives. Did u ever get a chance to baseline dyno your car stock? If you did go dyno the intake
Old 04-25-09, 05:26 PM
  #35  
casper10
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I just ordered through the Circuit Motorsports guys, so let's see if the K&N performs. Im planning on a dyno run with my other bolt on's in the next few weeks.
Old 04-25-09, 10:40 PM
  #36  
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Threads merged. No point in having two threads about the same intake on the same group buy. As you were...
Old 04-30-09, 04:30 PM
  #37  
Supraman16
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Anyone dyno this intake yet? I'm holding off getting one until there are some numbers to back up K&N's claims.
Old 04-30-09, 05:50 PM
  #38  
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i refuse to get one based on the price alone. there is no reason that just bc an is-f cost more then an is-350 the intake should be double the price. you can say all you want about oh it cost more bc our cars are worth more and that us utter bs you are only lying to yourself.
Old 04-30-09, 06:23 PM
  #39  
batdude
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splat, while i certainly agree with you to a limited extent... you have to factor in the numbers of available vehicles .... there are a heck of a lot more IS350/250's out there than F's... like thousands more... so therefore, they won't sell as many of the "F" models... meaning cost per unit goes up to recoup manufacture/design costs.

i'm still not buying one - i never liked anything from K&N.


doug
Old 04-30-09, 06:24 PM
  #40  
8speed
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Originally Posted by Supraman16
Anyone dyno this intake yet? I'm holding off getting one until there are some numbers to back up K&N's claims.

Patience my friend........I'm expecting good numbers, even better than the joe z tube alone
Old 04-30-09, 09:37 PM
  #41  
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Originally Posted by batdude
splat, while i certainly agree with you to a limited extent... you have to factor in the numbers of available vehicles .... there are a heck of a lot more IS350/250's out there than F's... like thousands more... so therefore, they won't sell as many of the "F" models... meaning cost per unit goes up to recoup manufacture/design costs.

i'm still not buying one - i never liked anything from K&N.


doug

true but at the same time its a few inches longer then the joe-z pipe with a heat shield and a cone filter. the same heat shield is on the 250/350. So thats really out the window for their price argument.
Old 05-01-09, 06:03 AM
  #42  
DRE1615
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I still don't understand how this plays in with the OEM "dual stage instake." Is the K&N eliminating "stage 1" and just having "stage 2" open at all RPM's?

It seems so typical K&N but at the same time it is confusing with all the tech crap from the factory.

Anyone have any input on that?
Old 05-01-09, 07:13 AM
  #43  
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^^^^I have attached a drawing of the stock ISF intake. All replacement intakes, except the JoeZ, eliminate the stock air box, which eliminates the vacuum controlled secondary intake. All aftermarket intakes, except the JoeZ also make the primary air intake non-functional. The K&N draws air from the same area as the secondary air inlet in the stock ISF. However, the top is not sealed with plastic as the stock system is.

Lou
Attached Thumbnails Taking one for the team to test out the new K&N intake.-isf-engine_story_page_6.jpg  
Old 05-01-09, 07:18 AM
  #44  
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Looks like Joe-Z pipe + high flow filter and your set. This $399 K&N intake might be bloated hype.
Old 05-01-09, 11:14 AM
  #45  
550fresh
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Default it was only 300 from autoanything

been driving on it for a week now gas mileage stayed between 19.8 and 20.5 i like it alot it makes me wana gun it everywhere just 2 hear it....so happy with my purchase....no unusual noise from the engine bay....so far so good


Quick Reply: Taking one for the team to test out the new K&N intake.



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