Who has replaced their stock air filter with a K & N???
04-18-2007, 04:08 PM
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Do you think it improves your performance?
have you had any problems such as a fouled MAF?
This problem was bandied around on the M5Board for a long time. Not many people with the E39 M5 used them and most that did, complained of fouled MAF's. It may been caused by over-oiling, but who knows.
So if anyone here has any long term experience (or short term) they would like to share, please do.
al
have you had any problems such as a fouled MAF?
This problem was bandied around on the M5Board for a long time. Not many people with the E39 M5 used them and most that did, complained of fouled MAF's. It may been caused by over-oiling, but who knows.
So if anyone here has any long term experience (or short term) they would like to share, please do.
al
04-18-2007, 06:01 PM
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My Ride: '05 545i - scheduled for ED pickup in Munich on 7/22!
i've had it for 6 months, no problems. it comes pre-oiled, so dont add oil.
i installed it along with deleting the charcoal filter, so dont know how the k&n affects performance on its own, but with both mods, the car pulled harder and had a louder roar.
i installed it along with deleting the charcoal filter, so dont know how the k&n affects performance on its own, but with both mods, the car pulled harder and had a louder roar.
04-18-2007, 06:16 PM
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Originally Posted by jet190rs' post='415460' date='Apr 18 2007, 07:01 PM
i've had it for 6 months, no problems. it comes pre-oiled, so dont add oil.
i installed it along with deleting the charcoal filter, so dont know how the k&n affects performance on its own, but with both mods, the car pulled harder and had a louder roar.
i installed it along with deleting the charcoal filter, so dont know how the k&n affects performance on its own, but with both mods, the car pulled harder and had a louder roar.
Yeah, it was great. louder and a bit harder pull.
04-18-2007, 07:51 PM
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My Ride: F13 M6
Originally Posted by jet190rs' post='415460' date='Apr 18 2007, 07:01 PM
no problems. it comes pre-oiled, so dont add oil.
i installed it along with deleting the charcoal filter, so dont know how the k&n affects performance on its own, but with both mods, the car pulled harder.
i installed it along with deleting the charcoal filter, so dont know how the k&n affects performance on its own, but with both mods, the car pulled harder.
04-19-2007, 02:15 PM
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Originally Posted by AlB' post='415588' date='Apr 19 2007, 08:17 AM
Thanks for feedback
where is the best place/price to source the filter?
where is the best place/price to source the filter?
04-19-2007, 02:22 PM
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My car developed a stalling problem for the first 2 months with the new filter, but the problem went away. I have heard about others reporting the same problem. Perhaps the computer must adjust.
04-19-2007, 03:01 PM
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Originally Posted by monacobmw' post='415780' date='Apr 19 2007, 05:22 PM
My car developed a stalling problem for the first 2 months with the new filter, but the problem went away. I have heard about others reporting the same problem. Perhaps the computer must adjust.
04-19-2007, 04:25 PM
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Originally Posted by elyk' post='415783' date='Apr 19 2007, 07:01 PM
i've heard the same thing, so i got a little discouraged from removing the charcoal filter and purchasing the k&n air filter. however, if i only install the filter without removing the charocal, will i still stall? and i have an auto trany...im not sure about the others who experienced this problem
I tried removing the charcoal filter and then putting it back. No difference.
Imagine running 10 miles with cotton in your nose, and then taking the cotton away. It will not feel the same. When you remove the filter, the car must adjust.
It has been 7 months since I put in the filter. The stalling went away in month 2, and my car has been great ever since.
