#2890890 - 08/07/08 12:41 AM
Re: AEM or Injen Cold air or K&N short ram for my 07 si?
[Re: Saskcivc]
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Design
Post Master Supreme
Registered: 12/11/02
Posts: 11404
Loc: The OC
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Short Rams have a reputation for heat soak in extended stop & go traffic; this includes K&N's version with the heat shield. Both AEM and Injen have returned positive results.
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09 CWP MS3 01 Echo 5MT 00 EBP Si - Sold - Pics89 Camaro - Sold CSI. What's your diversion?
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#2893716 - 08/07/08 11:33 PM
Re: AEM or Injen Cold air or K&N short ram for my 07 si?
[Re: Saskcivc]
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BlkSi08
Newbie
Registered: 05/26/08
Posts: 23
Loc: Bay Area
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Yes stick with AEM.... 
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#2906541 - 08/12/08 08:04 PM
Re: AEM or Injen Cold air or K&N short ram for my 07 si?
[Re: BlkSi08]
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Nooka King
Newbie
Registered: 08/12/08
Posts: 28
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i have AEM CAI and it sound mean when i get on it plus a good hp increase also. so AEM for me.
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PREV CARS Srt-4 2004______Honda Civic SI 2000 Stage 1_________Bone Stock Mopar BOV______1/8 10.01 1/8 9.24________(SOLD) (R.I.P)__________132 Hp / 93 Tq 245 Hp / 265 Tq NEW CAR  AEM CAI 1/8 9.89 est. 185 Hp / 140 Tq
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#2908811 - 08/13/08 01:11 PM
Re: AEM or Injen Cold air or K&N short ram for my 07 si?
[Re: Nooka King]
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AX-NY'06Si
Jr Member
Registered: 09/19/06
Posts: 621
Loc: Southern NY State
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Drop-in K&N FTW. $35, no installation, probably comparable power.
_________________________
'06 NBP Si w/ OEM fogs '06 Mazda 3S GT 
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#2928386 - 08/19/08 10:22 AM
Re: AEM or Injen Cold air or K&N short ram for my 07 si?
[Re: AX-NY'06Si]
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Robertw
Newbie
Registered: 10/04/06
Posts: 65
Loc: Ma
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Drop-in K&N FTW. $35, no installation, probably comparable power.
Is there any real proof to this? I mean how can just a drop in, $35 filter give you around 4-5hp? Dyno runs?
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#2928669 - 08/19/08 11:38 AM
Re: AEM or Injen Cold air or K&N short ram for my 07 si?
[Re: Robertw]
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AX-NY'06Si
Jr Member
Registered: 09/19/06
Posts: 621
Loc: Southern NY State
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Drop-in K&N FTW. $35, no installation, probably comparable power. Is there any real proof to this? I mean how can just a drop in, $35 filter give you around 4-5hp? Dyno runs?
I haven't seen good proof (before and after dyno runs with only the cai) that the CAI does 4-5 hp. I've seen dyno runs with CAI and headers or CAI and Hondata, or CAI versus stock dyno runs taken on different days, but legitimate testing of three pulls OEM, versus three pulls with the CAI, within say 30 minutes... that I have not seen.
The point is that the stock box already pulls air from the fender. It is already a CAI. With the aftermarket CAI you are gaining a smoother intake track and more filter surface area and losing the helmholtz resonator and changing the distance from the MAF to the Throttle body.
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'06 NBP Si w/ OEM fogs '06 Mazda 3S GT
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#2929860 - 08/19/08 03:56 PM
Re: AEM or Injen Cold air or K&N short ram for my 07 si?
[Re: AX-NY'06Si]
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Robertw
Newbie
Registered: 10/04/06
Posts: 65
Loc: Ma
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Drop-in K&N FTW. $35, no installation, probably comparable power. Is there any real proof to this? I mean how can just a drop in, $35 filter give you around 4-5hp? Dyno runs? I haven't seen good proof (before and after dyno runs with only the cai) that the CAI does 4-5 hp. I've seen dyno runs with CAI and headers or CAI and Hondata, or CAI versus stock dyno runs taken on different days, but legitimate testing of three pulls OEM, versus three pulls with the CAI, within say 30 minutes... that I have not seen. The point is that the stock box already pulls air from the fender. It is already a CAI. With the aftermarket CAI you are gaining a smoother intake track and more filter surface area and losing the helmholtz resonator and changing the distance from the MAF to the Throttle body.
Is there a part number for the K&N drop in filter. I want to try it out this weekend since I have free time and will be going to the track the following week, weather permitting, to see if I get a better ET. Right now stock 15.1, maybe there will be an improvement, maybe there won't.
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#2930090 - 08/19/08 04:51 PM
Re: AEM or Injen Cold air or K&N short ram for my 07 si?
[Re: Robertw]
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AX-NY'06Si
Jr Member
Registered: 09/19/06
Posts: 621
Loc: Southern NY State
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K&N drop-in - Part # 33-2343
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'06 NBP Si w/ OEM fogs '06 Mazda 3S GT
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#2950185 - 08/25/08 10:07 AM
Re: AEM or Injen Cold air or K&N short ram for my 07 si?
[Re: AX-NY'06Si]
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Robertw
Newbie
Registered: 10/04/06
Posts: 65
Loc: Ma
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Put the drop in filter in and the ass dyno did not notice a difference. Atleast I can just clean the filter instead of buying a new one.
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#2962724 - 08/28/08 11:37 AM
Re: AEM or Injen Cold air or K&N short ram for my 07 si?
[Re: Robertw]
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Design
Post Master Supreme
Registered: 12/11/02
Posts: 11404
Loc: The OC
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Drop-in K&N FTW. $35, no installation, probably comparable power. Is there any real proof to this? I mean how can just a drop in, $35 filter give you around 4-5hp? Dyno runs?
You'll probably notice a 4-5 HP spike between 3-5K RPMs. There is minimal gain up top, and many are losing power under 2K. The results are noticeable but not awe-inspiring.
Op, glad you like the intake. Make sure to clean the filter every 30K. 
_________________________
09 CWP MS3 01 Echo 5MT 00 EBP Si - Sold - Pics89 Camaro - Sold CSI. What's your diversion?
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#2973472 - 09/01/08 09:10 PM
Re: AEM or Injen Cold air or K&N short ram for my 07 si?
[Re: Design]
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CMR
Newbie
Registered: 07/10/08
Posts: 15
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I have an '08 with the Injen CAI with MR tech. It sounds good, as far as power I'm not sure. Injen claims about 10.7 HP (to the wheels supposedly) and 11.3 ft-lb of torque or something like that for the 06+ si. I haven't really noticed a difference but then again, are you really going to feel 10 HP? I've heard with the 06+ SI's to go with the Injen over the AEM, procivic.com recommends the injen over the aem as well since it is tuned for a/f ratio.
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"For a list of ways that technology has failed to improve the quality of life, please press three."
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