I went back to stock because I am selling(sold) my K&N because I need the money. lol

ur probably better off using ur money on something else,

Just so you know Butt Dyno is not that accurate.

I had K&N v2 and now Im using Mazdaspeed. so I know.

:mchase:

Most people who said "K&N SUCK DICK" never even seen the intake in person. So you dont need to listen to them.

I used both (K&N and AEM/Mazdaspeed) so I know best.

K&N will give you the highest top end gain. lower end feels the same as stock. Stock VFAD is not good for K&N, cuz there is not enough fresh air coming in, even when the car is moving. So use K&N only with Things like RB Duct or Re-Amemiya Duct(expensive).

AEM/Mazdaspeed looks good, but during hot days, the metal pipe will be soak in heat so basically your air is traveling thru "hot pipes"all the time. The pipe is actually too hot to touch. during idle, AEM/Mazdaspeed's IAT will be lower than K&N . if you're going with AEM/Mazdaspeed. I would recommend you to seal the metal pipes with something. Another thing is that the position of the filter is right in front of the Radiator. its not really a problem when the car is moving, but if stuck in traffic and The radiator fan kicks in, all the hot air will go from the fan and hit that filter.

If you want better bang for buck, just get a K&N drop in filter, then spend some extra money for a better(lighter) exhaust. stock exhaust weights 37 lbs

Soon I will put Mazdaspeed back into the box and put RB duct + K&N back on, or just put it back to stock. I love different sound :)

If you get the k&n make sure you get the RB air duct! And you'll love going WOT under overpasses sounds like a street bike!

yeah but most short intakes have a heat shield to absorb from getting heat soak so if you can get one and put it on that should help alot

Read what swoope has said

plus, the back of the K&N has a layer of reflective material, its heat shield ...

well i ran the rb duct and intake for a very long time. i am now running stock..

the intake temps are cooler with stock. under all conditions..

i have a k&n v2 on the way, but it is going to be modified somewhat to do a couple of different things.

i do plan on sealing the top, and the the vdaf to the the front of the firewall.

beers :beer:

I'm sorry nycgps, but this is all completly wrong. You make the case the K&N is great but then you give the very information which makes it a bad choice.

As I stated above, I'm against this intake after having used it for 2 years and over 40,000 miles. I currently own the AEM and have found it to be superior with the only other better intake being the stock intake system. The very reason the K&N is a poor choice is because of the increased intake air temps. Hot air robs you of power.

Ok, so if the pipe is so hot then why are the intake air temps going to be lower than the K&N? In all cases my IAT's are only a few degrees above the ambient temperature even at idle. As for the filter placement, the radiator fans pull air through the radiator, not pushing air so the filter itself isn't exposed.

You could make the case the radiator fans would blow hot air against the intake pipe but the K&N is worse for that since the filter element is down wind where the AEM is in front of the radiator.

Here's a thread in the AZ Mazda Club website which shows datalogs from the K&N and AEM taken under pretty similar conditions:

http://www.azmazdaclub.com/forums/sh...5&postcount=83

The AEM is within a few degrees of ambient while the K&N is about 20+ degrees above ambient @ 70mph cruising speeds. I've actually seen 190 degree IAT's with the K&N.

Honestly, unless you want to pay $300 for sound just keep the stock intake system as it works just fine.

I was saying most people. not all. Which is true.

For me, K&N works ok, its not the best and seriously they can do better than that. oh well :(

I was probably the first one on rx8club to have this intake and I've been using it more than 2 yrs b4 I switched to Mazdaspeed late last summer so I think I know what Im talking about.

I monitored IAT myself and yes, IAT is pretty high at idle, but as soon as the car moves. it drops pretty quickly, in fact, its about the same as AEM when moving. I did say that AEM/Mazdaspeed has lower IAT. I even said it in my post.

Thats because AEM/Mazdaspeed extend the pipe all the way out, like I said before the IAT is higher for K&N at idle. when moving. its about the same.

Is it just me? When my fan is on I feel the air being pushed out, not the other way around.

You need to have the stock intake tray underneath for K&N. so it blocks pretty much most if not all of the air you talked about.

AEM/Mazdaspeed works with/without the tray. but pipe is still too hot to touch. I tried both configuration.

I seen something like 170-180. NYC would never get as hot as AZ.

but again, as soon as the car moves, the iat went down pretty quickly. I am curious did ya use RB duct or VFAD for K&N ?

agreed.

My car doesn't even sound like a sports car anymore with the stock intake on. It quieter than a f*cking toyota camry. :-(

Keep the stock intake but remove the VFAD. No cost, easy (you do have to remove the bumper) and a noticeable difference.

are you serious about this ? :lol:

Yup. Obviously no Hp gain (none expected), but the VFAD opening hesitation is gone. Everyone should ban the VFAD. ;)

alright everyone, i REALLY appreciate the help!! all of these ideas have lead me to make my decision

NO AFTERMARKET INTAKE... instead, i just went to autozone and bought a spectre air filter (the cone shaped one) exact same as the K&N only it's not. i stuck that on the little cylindrical shaped thing that's screwed into the airbox, then cut out a huge hole in the airbox and voila. i have an awesome sound w/slight increase in horsepower, and better throttle response...all-in-all i spent about 30 bucks

stock airbox mod.....that's all u need

it works/sounds brilliant

You drilled a hole on ur air box ? argh ... :sadwavey:

haha more like cut a rectangular shaped hole, about 7x4...sos the filter can breath better...obviously

*sigh*

I dont know what to say now, someone say it for me.

looks like this

wow ... no offense but ... you failed ....

if you want "noise", all you need to do is remove 2 pieces of plastic inside the box and you will get the noise that you want, and if you want better flow rate , you could've got some green filter or K&N filter.

Now ... argh ...

haha i already removed those two plastic pieces and it still didn't give me what i wanted....i'm glad you think it looks good!! hahaha

do you mean the K&N filter that is the same shape as the original filter?

rofl ...

yep ... it will give you even more noise ... but guess its too late now.

and you will get even less power ... *sigh*

Ok Ok I'll say it.

You failed, you are now loosing horse power.

Do a search and you will find out why.