997 Intakes
Registered User
Joined: Sep 2007
Posts: 296
From: Sunshine Coast, QLD, AU
Rep Power: 31
also have an EVOMS intake if only for the wail over 5K RPM ...not sure of any performance benefits (of course increased decibels = increased hp, according to my butt dyno that is)
Registered User
Joined: Nov 2006
Posts: 546
From: Birmingham, AL
Rep Power: 41
X-51, It is factory and the carbon fiber is excellent.
According to my Butt dyno it adds 50 HP.
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Joined: Jan 2008
Posts: 8,875
From: Vancouver
Rep Power: 684
Registered User
Joined: Nov 2006
Posts: 546
From: Birmingham, AL
Rep Power: 41
You got that right!!! That plenum was another 50HP on top of the first with the Intake until somebody here tried to tell me it was only worth 5 at best!!
But my Butt DYNO DON"T LIE!!!!
But my Butt DYNO DON"T LIE!!!!
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Registered User
Joined: Jul 2005
Posts: 137
From: Irvine, CA
Rep Power: 26
Anyone have any personal experience regards to K&N ? I read a lot of negative posts but they all seem like second hand knowledge, e.g. they never owned one, so I can't go off their 'stories'.
Just curious.
Just curious.
Registered User
Joined: Nov 2006
Posts: 546
From: Birmingham, AL
Rep Power: 41
I have but not on the Porsche. My conclusion is they are more of a Pain then they are worth. In that I am referring to the cleaning and Oiling. I personally don't like doing it.
In addition to what I read they let more air into the engine but with that came more dirt and wear.
So I stayed with the Factory Paper filters in the X-51. I clean them every time I change the oil by just knocking them against the top of the garbage can. It always amazes me as to how much dirt comes off the filter when I do this.
In addition to what I read they let more air into the engine but with that came more dirt and wear.
So I stayed with the Factory Paper filters in the X-51. I clean them every time I change the oil by just knocking them against the top of the garbage can. It always amazes me as to how much dirt comes off the filter when I do this.
Registered User
Joined: Jul 2005
Posts: 137
From: Irvine, CA
Rep Power: 26
I have but not on the Porsche. My conclusion is they are more of a Pain then they are worth. In that I am referring to the cleaning and Oiling. I personally don't like doing it.
In addition to what I read they let more air into the engine but with that came more dirt and wear.
So I stayed with the Factory Paper filters in the X-51. I clean them every time I change the oil by just knocking them against the top of the garbage can. It always amazes me as to how much dirt comes off the filter when I do this.
In addition to what I read they let more air into the engine but with that came more dirt and wear.
So I stayed with the Factory Paper filters in the X-51. I clean them every time I change the oil by just knocking them against the top of the garbage can. It always amazes me as to how much dirt comes off the filter when I do this.
how much was your x-51 air box?
Registered User
Joined: Aug 2007
Posts: 6,724
From: Eastside, WA (6speed is my vacation home)
Rep Power: 407
we had our K&N installed on our 996 a week ago. 2 days after the install the check engine light came on. a day later it went off, and now back on again. the car is going in on the 19th to see if it's the mass air flow or the O2 sensor. aghh! hopefully, it will all workout and be fine.
it does sound good along with the fabspeed muffler bypass that we have in the car. i didn't notice any HP changes (less or more). i'll X my fingers that we don't have any other issues with it. =)
it does sound good along with the fabspeed muffler bypass that we have in the car. i didn't notice any HP changes (less or more). i'll X my fingers that we don't have any other issues with it. =)
Last edited by BoxsterGirlie01; Aug 15, 2008 at 11:52 AM.
Registered User
Joined: Jul 2005
Posts: 137
From: Irvine, CA
Rep Power: 26
we had our K&N installed on our 996 a week ago. 2 days after the install the check engine light came on. a day later it went off, and now back on again. the car is going in on the 19th to see if it's the mass air flow or the O2 sensor. aghh! hopefully, it will all workout and be fine.
GL with your car @ the dealer. Hopefully you don't have to replace your MAF sensor.
Registered User
Joined: Nov 2006
Posts: 546
From: Birmingham, AL
Rep Power: 41
I bought mine last December and installed it myself which is not easy to do, you need to need to cut a hole in the lid and put in a new oil filler tube, both are challenging.
I think my total cost was in the $7-800 range.
Registered User
Joined: Nov 2006
Posts: 546
From: Birmingham, AL
Rep Power: 41
we had our K&N installed on our 996 a week ago. 2 days after the install the check engine light came on. a day later it went off, and now back on again. the car is going in on the 19th to see if it's the mass air flow or the O2 sensor. aghh! hopefully, it will all workout and be fine.
it does sound good along with the fabspeed muffler bypass that we have in the car. i didn't notice any HP changes (less or more). i'll X my fingers that we don't have any other issues with it. =)
it does sound good along with the fabspeed muffler bypass that we have in the car. i didn't notice any HP changes (less or more). i'll X my fingers that we don't have any other issues with it. =)