# Air Filter Comparison Test **URL:** \ **Category:** Canada Nissan Automotive\ **Created:** [March 12, 2006, 11:56am UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800 "2006-03-12T11:56:04Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![DatsunDave](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/datsundave/32/5805_2.png) [@DatsunDave](https://forums.speedlife.net/u/DatsunDave)\ **Post date:** [March 12, 2006, 11:56am UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800/1 "2006-03-12T11:56:04Z")
Sorry if this is a re-post. Searched and couldn’t find. Mod, delete if duplicate. If you are looking at air intake options here is a link to an objective test comparing different filters. Each one in the test provided about the same horse power gains but the amount of filtration is alarming. Sorry foam guys. [http://www.mkiv.com/techarticles/filters\_test/2/](http://www.mkiv.com/techarticles/filters_test/2/) ---
**Author:** ![RS13](https://avatars.discourse-cdn.com/v4/letter/r/46a35a/32.png) [@RS13](https://forums.speedlife.net/u/RS13)\ **Post date:** [March 12, 2006, 2:29pm UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800/2 "2006-03-12T14:29:25Z")
Good thing i have an apexi. :lol: ---
**Author:** ![qualthar](https://avatars.discourse-cdn.com/v4/letter/q/74df32/32.png) [@qualthar](https://forums.speedlife.net/u/qualthar)\ **Post date:** [March 12, 2006, 2:32pm UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800/3 "2006-03-12T14:32:09Z")
Dave I posted that on GTRC about a year ago, and I think it’s somewhere here too 😛 I have the Blitz filters 8) ---
**Author:** ![sil\_eightyRPS13](https://avatars.discourse-cdn.com/v4/letter/s/2bfe46/32.png) [@sil\_eightyRPS13](https://forums.speedlife.net/u/sil_eightyRPS13)\ **Post date:** [March 12, 2006, 2:42pm UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800/4 "2006-03-12T14:42:17Z")
HKS all the way…not sure why APEX’i is leading…too restrictive, make turbo whistle go bye bye… ---
**Author:** ![DatsunDave](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/datsundave/32/5805_2.png) [@DatsunDave](https://forums.speedlife.net/u/DatsunDave)\ **Post date:** [March 12, 2006, 3:20pm UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800/5 "2006-03-12T15:20:06Z")
dumb double post…edit ---
**Author:** ![DatsunDave](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/datsundave/32/5805_2.png) [@DatsunDave](https://forums.speedlife.net/u/DatsunDave)\ **Post date:** [March 12, 2006, 3:21pm UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800/6 "2006-03-12T15:21:58Z")
> [@qualthar](#): > > Dave I posted that on GTRC about a year ago, and I think it’s somewhere here too. I think I recall that but I couldn’t find it here. > [@sil\_eightyRPS13](#): > > HKS all the way…not sure why APEX’i is leading…too restrictive, make turbo whistle go bye bye… Leading?? Could be because it is the best at filtration according to this test and adds the same HP as any of the others??? I also choose keeping the inside of my engine heathy over “turbo whistle” any day. ---
**Author:** ![jdms13rhd](https://avatars.discourse-cdn.com/v4/letter/j/f05b48/32.png) [@jdms13rhd](https://forums.speedlife.net/u/jdms13rhd)\ **Post date:** [March 12, 2006, 3:35pm UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800/7 "2006-03-12T15:35:21Z")
I have my option mag here from this month and they compare air filters and diffrent throttle bodys and MAFs. I will translate and take pictures if I have time but I think Apexi was the best filter. The HKS didnt filter too well. There is also voltage charts for every MAF including the VG, RB,SR, CA, VK ect ---
**Author:** ![New\_Direction](https://avatars.discourse-cdn.com/v4/letter/n/7c8e57/32.png) [@New\_Direction](https://forums.speedlife.net/u/New_Direction)\ **Post date:** [March 12, 2006, 5:43pm UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800/8 "2006-03-12T17:43:40Z")
I kind of wonder about the HP gains they claim. I have actual dyno sheets proving that a K&N filter made LESS HP than an old dirty OEM filter on a big block Ford. I find it hard to believe that any would be a 14 HP gain too. ---
**Author:** ![CA18DET-180SX](https://avatars.discourse-cdn.com/v4/letter/c/e0b2c6/32.png) [@CA18DET-180SX](https://forums.speedlife.net/u/CA18DET-180SX)\ **Post date:** [March 12, 2006, 5:56pm UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800/9 "2006-03-12T17:56:30Z")
Damn stupid Blitz filter not doing its job! ---
**Author:** ![Scat](https://avatars.discourse-cdn.com/v4/letter/s/c2a13f/32.png) [@Scat](https://forums.speedlife.net/u/Scat)\ **Post date:** [March 12, 2006, 5:57pm UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800/10 "2006-03-12T17:57:07Z")
> [@New Direction](#): > > I kind of wonder about the HP gains they claim. I have actual dyno sheets proving that a K&N filter made LESS HP than an old dirty OEM filter on a big block Ford. I find it hard to believe that any would be a 14 HP gain too. On a Supra TT I’m sure it would have made the claimed 14rwhp gain. ---
**Author:** ![Cavey](https://avatars.discourse-cdn.com/v4/letter/c/ecb155/32.png) [@Cavey](https://forums.speedlife.net/u/Cavey)\ **Post date:** [March 12, 2006, 6:08pm UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800/11 "2006-03-12T18:08:39Z")
I don’t know what I’m running, whatever comes on the NSIMO CAI I guess. ---
**Author:** ![Nis240](https://avatars.discourse-cdn.com/v4/letter/n/a9a28c/32.png) [@Nis240](https://forums.speedlife.net/u/Nis240)\ **Post date:** [March 12, 2006, 6:38pm UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800/12 "2006-03-12T18:38:15Z")
Apexi is the best for filtration and power. Tests prove that. ---
**Author:** ![mikesim](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/mikesim/32/5561_2.png) [@mikesim](https://forums.speedlife.net/u/mikesim)\ **Post date:** [March 14, 2006, 11:40am UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800/13 "2006-03-14T11:40:44Z")
yea, it’s been posted here before. i still haven’t swapped out my HKS for an apexi yet. ☹ ---
**Author:** ![GTR-Dad](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gtr-dad/32/5813_2.png) [@GTR-Dad](https://forums.speedlife.net/u/GTR-Dad)\ **Post date:** [March 14, 2006, 12:46pm UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800/14 "2006-03-14T12:46:32Z")
That’s the article that convinced me to go Apexi. Any thoughts on where to buy filter elements down the road? I hear Apexi is no longer operating. ---
**Author:** ![PyreXXX](https://avatars.discourse-cdn.com/v4/letter/p/bbe5ce/32.png) [@PyreXXX](https://forums.speedlife.net/u/PyreXXX)\ **Post date:** [March 14, 2006, 12:56pm UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800/15 "2006-03-14T12:56:44Z")
Didn’t it say in the article that the Apexi was a lifetime filter? I presume that means you can just remove it, blow it out, and then replace it so you wouldn’t need a replacement filter element… ---
**Author:** ![RS13](https://avatars.discourse-cdn.com/v4/letter/r/46a35a/32.png) [@RS13](https://forums.speedlife.net/u/RS13)\ **Post date:** [March 14, 2006, 3:32pm UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800/16 "2006-03-14T15:32:22Z")
> [@GTR-Dad](#): > > That’s the article that convinced me to go Apexi. > > Any thoughts on where to buy filter elements down the road? I hear Apexi is no longer operating. Apexi is still around. Just clean out the filter and replace it when it gets too dirty. Simmilar to the HKS ---
**Author:** ![Uglyoldnissan](https://avatars.discourse-cdn.com/v4/letter/u/b2d939/32.png) [@Uglyoldnissan](https://forums.speedlife.net/u/Uglyoldnissan)\ **Post date:** [March 14, 2006, 4:35pm UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800/17 "2006-03-14T16:35:33Z")
So dry mesh was the most effective? Hmm, I wonder how my cheap ass Ractive dry mesh filter stacks up. I ran it for almost 3000k once and checked the inside of the throttle body for that thin film of grime you sometimes find, and nothing. Only downside is that it makes a rather loud hissing/suction noise when you stomp it. Maybe I’ll do my own test with it. ---
**Author:** ![GTR-Dad](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gtr-dad/32/5813_2.png) [@GTR-Dad](https://forums.speedlife.net/u/GTR-Dad)\ **Post date:** [March 15, 2006, 9:15pm UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800/18 "2006-03-15T21:15:51Z")
Very cool. I’ll have to brush up on my reading comprehension! :? Thx! ---
**Author:** ![the.k.w.c](https://avatars.discourse-cdn.com/v4/letter/t/e56c9b/32.png) [@the.k.w.c](https://forums.speedlife.net/u/the.k.w.c)\ **Post date:** [March 26, 2006, 10:25pm UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800/19 "2006-03-26T22:25:12Z")
were can i get a apex filter from and how much ---
**Author:** ![DatsunDave](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/datsundave/32/5805_2.png) [@DatsunDave](https://forums.speedlife.net/u/DatsunDave)\ **Post date:** [March 27, 2006, 11:12am UTC](https://forums.speedlife.net/t/air-filter-comparison-test/141800/20 "2006-03-27T11:12:59Z")
> [@\-the.k.w.c-](#): > > were can i get a apex filter from and how much Before anyone can answer that question it would be helpful to know the application? Try one of our sponsors. If that does not work try this… [http://www.apexi-usa.com/dealers\_usacanada.asp?id=5#results](http://www.apexi-usa.com/dealers_usacanada.asp?id=5#results) [Next page](https://forums.speedlife.net/t/air-filter-comparison-test/141800.md?page=2)