K&n intake vs. Joe Z intake - Lexus ISF / IS-F / LFA / LF-A Forum
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post #1 of 21 Old 06-08-2009, 01:58 PM Thread Starter
jaslapp1
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K&n intake vs. Joe Z intake

I was in new Jersery this weekend for the formula D event in Wall and they had a K&N vender there. After talking to him I'm very interested in the K&N intake. I'm currently running the Joe Z with Tom's insert and although I'm not having any problems which is great I'm very disappointed in the sound. The K&N is suppose to be much louder but I'm a little worried about the oiled fitler. The guy said they don't sell dry ones? Is that correct and has anyone dynoed their K&N yet? Any and all feedback would be great. Thanks.
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post #2 of 21 Old 06-08-2009, 02:29 PM
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Although I do not have a K&N on the F yet (still looking to see what the best way to go is yet), I do have them on my other 4 cars and have never had a problem, my BMW Service advisior told me just to be carfull and not to over oil it or it would screw up the map sensor, never had a problem in the 20 or so years that I have been using them
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post #3 of 21 Old 06-08-2009, 04:27 PM
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I've been waiting for dyno's and some feedback about the K&N intake. I've been hesitant to buy it without concrete evidence showing that it makes power due to the following:
1. SRT came out with a intake with similar design that actually lost power.
2. I had a K&N drop in that resulted in me losing MPG and power likely because the Lexus MAF got contaminated with the filter oil. It looks like the Lexus MAF are a bit more sensitive than others to the oil.

So until someone who has bought the intake and post some feedback and dyno numbers, I think I'll hold off getting one...Darshana S...
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post #4 of 21 Old 06-08-2009, 06:24 PM
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I have the JoeZ intake with a K&N drop-in. Unlike some of the others, who have reported oil on their MAF. I have suffered no such fate in 4K miles. I have used K&N for years with no issues. As has been said, do not over oil, and leave on a bench to dry overnite before using.

K&N's response to oiled filter contamination of the MAF:

http://www.knfilters.com/MAF/massair.htm

Lou

2008 ISF - Mercury Metallic - Mine
2008 ES350 - Tungsten Pearl - Wife's
2011 Chevrolet Silverado - White - Ours

Last edited by lowrider; 06-13-2009 at 03:34 PM.
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post #5 of 21 Old 06-08-2009, 11:12 PM
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I have gone for Joe Z intake plus the TOM'S drop-in because I like to keep the car as it is concerning the dual stage intake. I was reluctant on ordering the K&N because it has the same concept as the SRT and don't wanna risk it as we haven't heard much about it. I'm not saying it's bad by any means and not comparing it to the SRT.

I'm waiting for Clark from VIP to ship my Intake and Filter and will keep you posted on my opinion
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post #6 of 21 Old 06-09-2009, 01:48 AM Thread Starter
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I have the Joe Z intake and Tom's insert. It makes a slight difference in sound and a little better throttle response. I want a louder sound with more performance.
ISF-88 have you dynoed your car yet?
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post #7 of 21 Old 06-12-2009, 10:00 PM
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As far as I know, there have been no independent dyno's done of the K&N filter yet. I'm still waiting, like many others, to see the results. I'm running the Toms filter and Joe Z intake with his exhaust system and a throttle controller and am throughly enjoying the sound of the car




2008 Mercury Metallic IS-F - Work Gnosis GS3 Wheels Burning Black Centers with Polished Lips F: 20x9 R:20x11; Nitto Invo Tires F: 245/30/20 R: 285/25/20; Lexon Front Lip, Rear Roof Spoiler and CF Fog Covers; Custom Rear Diffuser and Tinted Tails; Joe Z Exhaust; AFE Takeda Intake; Blitz Throttle Controller; Smoked Emblems; JDM Window Visors; Tein Springs; Passport 9500xi Radar Detector; 5% Tint including windshield (I think that's it but might be missing something...feel free to ask)
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post #8 of 21 Old 06-13-2009, 02:12 PM Thread Starter
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Quote:
Originally Posted by BigMikeISF View Post
As far as I know, there have been no independent dyno's done of the K&N filter yet. I'm still waiting, like many others, to see the results. I'm running the Toms filter and Joe Z intake with his exhaust system and a throttle controller and am throughly enjoying the sound of the car
Big Mike, you have the throttle control. How do you like it and can you turn it back to like the factory normal and sport mode? I don't want too much throttle all the time because I like to take her to summit and too much throttle is no good going through the turns.
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post #9 of 21 Old 06-13-2009, 04:04 PM
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Quote:
Originally Posted by jaslapp1 View Post
I have the Joe Z intake and Tom's insert. It makes a slight difference in sound and a little better throttle response. I want a louder sound with more performance.

Maybe its time for the exhaust....

https://www.lexusfforum.com/forums/signaturepics/sigpic744_4.gif
2008 IS-F ~ Smoky Granite Mica ~ Black Leather ~ NAV ~ ML
Joe Z Intake - Designed by an Enthusiast for Enthusiasts
Performance Tube Systems Full True Dual 304 SS Exhaust
Five Axis R5:F 19x8.5 & 19x9.5 ~ Continental Extreme Contact DW 235-35 & 265-30
D2 Racing Sport Coils ~ Optic Blue AeroTect ~ JDM Fogs ~ Project Mu Brakes
Race Ready......
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post #10 of 21 Old 06-13-2009, 05:19 PM
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Quote:
Originally Posted by jaslapp1 View Post
Big Mike, you have the throttle control. How do you like it and can you turn it back to like the factory normal and sport mode? I don't want too much throttle all the time because I like to take her to summit and too much throttle is no good going through the turns.
I love it. I can literally throw people back in the seats now because it makes the power that much more accessible. When you have the throttle controller on and then turn it off you can feel one hell of a difference in the pedal. You have four (well five) mods for the throttle controller, OFF, ECON, SP1, SP2 and SP3. You can run the car with the throttle controller off completely if you would like. I do this sometimes when I don't feel like pushing the car Let me know if you have any other questions!




2008 Mercury Metallic IS-F - Work Gnosis GS3 Wheels Burning Black Centers with Polished Lips F: 20x9 R:20x11; Nitto Invo Tires F: 245/30/20 R: 285/25/20; Lexon Front Lip, Rear Roof Spoiler and CF Fog Covers; Custom Rear Diffuser and Tinted Tails; Joe Z Exhaust; AFE Takeda Intake; Blitz Throttle Controller; Smoked Emblems; JDM Window Visors; Tein Springs; Passport 9500xi Radar Detector; 5% Tint including windshield (I think that's it but might be missing something...feel free to ask)
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