K&N Drop Ins?
Drifting
Joined: Aug 2000
Posts: 1,747
Likes: 0
From: Sebring, Florida
Their advantage over a new paper filter is negligible. I doubt there would be any measurable HP gain. However, they do not lose any appreciable flow as they get dirty, unlike the paper filter, that flow less and less as it get dirty. Their biggest advantage is that they are cleanable and reusable.
Some here state that the stock intake is fairly well designed and there is little advantage to swapping out the whole intake for an aftermarket piece. Opinions vary.
Some here state that the stock intake is fairly well designed and there is little advantage to swapping out the whole intake for an aftermarket piece. Opinions vary.
Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
This is one of those hot debate items. You are going to get more responses than you want.
If you want them, get them becasue you will get really confused once the responses start coming in.
If you want them, get them becasue you will get really confused once the responses start coming in.
Team Owner
Joined: Dec 2003
Posts: 57,408
Likes: 164
From: queensbury ny
K+n
What he said!!You really won't get a H.P. gain and in fact,per GM,if the oil screws up the maf you're on your own for a fix!!They released a notice last year sometime(or even earlier than that) about air filter oil getting into the maf.Also,somebody on here posted some good research info on the filter that showed it actually hindered flow after a while.SO,in the end it boils down to personal preference!!!I actually bought 2 for my 05 and never put them in!!
Pro
Joined: Nov 2005
Posts: 672
Likes: 1
From: Sapulpa Oklahoma
I had K&N in my S-Type simply because it was VERY difficult to find a filter for the thing. I could service with no hassle. Especially in backwater town I live in. That said, I don't think any of these things help HP other than at wide open throttle, and how often is that the case while you're driving around. At the track, sure you may see some slight gain, but normal every day driving? Think about it, throttle blade 15% open, any filter (even a dirty paper one) can keep up with that. IF, and its a big IF, these things did as advertised the big 3 would have one in every car they sell. They could advertise more HP and it would help them with the CAFE standard.
Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
Originally Posted by dbradley
I had K&N in my S-Type simply because it was VERY difficult to find a filter for the thing. I could service with no hassle. Especially in backwater town I live in. That said, I don't think any of these things help HP other than at wide open throttle, and how often is that the case while you're driving around. At the track, sure you may see some slight gain, but normal every day driving? Think about it, throttle blade 15% open, any filter (even a dirty paper one) can keep up with that. IF, and its a big IF, these things did as advertised the big 3 would have one in every car they sell. They could advertise more HP and it would help them with the CAFE standard.
