View Full Version : Secret Weapon Intake or K&N TYPHOON COLD AIR INTAKE


txjcb
03-05-2005, 11:54 PM
What is better AND why? I am leaning to the K&N just because it is a cold air intake and the SW will suck hot air from the motor and loose HP.

sensay
03-06-2005, 12:43 AM
actualy bro the SW not only makes more HP than the K&N it costs less too, oh and by the way u will probably be able to add the cold air extension in the future for the SW

KINGxOFxSKA
03-06-2005, 01:25 AM
i'd go with the K&N cold air intake. thats wut i have on mine. :D i'm very satisfied.

http://memimage.cardomain.net/member_images/4/web/772000-772999/772241_37_full.jpg

bambams247
03-06-2005, 02:42 AM
I plan on going with the Secret Weapon due to deisgn and nice view and not a PITA to install and clean!

Swanny
03-06-2005, 02:50 AM
I went with the WR SW intake and couldn't be happier. I can really feel the car pull more in the higher rpm ranges and it sounds great with the TRD exhaust. I haven't felt any loss in the low end either. I also plan on adding the cold air kit once summer comes. You may want to consider where you live as a factor. I'm in WI and we get a lot snow and it doesn't get real hot in the summers. Short ram was for me because I drive on sloppy snowy roads all the time and didn't want my filter down to low. Heres a pic of the Weapon R SW Intake installed.

http://i2.photobucket.com/albums/y38/Swanny/SWDC.jpg

ToBeeyach
03-06-2005, 03:12 AM
I've been shopping for an intake and i'm starting to like the SW more and more... anyone know know if there's a heat shield available to buy with it, or if u have to get that seperate... and if so, where?

txjcb
03-06-2005, 03:19 AM
I live in Texas so the heat, not only from the engine compartment but the outside temp can get up to 105.

bambams247
03-06-2005, 07:58 AM
wow, pics of SW look great, cant wait to get one, and the ehatshield option would be nice. Does it throw a CEL or is it 100% good? Oh man cant wait to get my hands on one of these! great intake!

LIKE_OR_AS_GOD
03-06-2005, 02:13 PM
actualy bro the SW not only makes more HP than the K&N it costs less too, oh and by the way u will probably be able to add the cold air extension in the future for the SW
Uh what HP results you going off...and if you get the K&N it can be installed as a short ram allso. I get mine this week and well I will go with K&N mainly cause of name and the fact it is actualy cheaper if you look around (well was for me).

Swanny
03-06-2005, 02:13 PM
bambams247
I have not gotten a CEL with the WR SW intake. When I installed it I reset the ECU (unhooked neg batt cable while installing) and then let the car idle for about 5 mins after the install. Then when first driving I took it easy on it for the first couple miles so the ECU could adjust to the new air flow. I believe Weapon R also changed the piping where the MAF sensor mounts from earlier models of this intake. I am yet to hear of a CEL with this new model of the intake. I'm also looking forward to a heatshield for it, don't believe it's out yet.

KINGxOFxSKA
03-06-2005, 03:26 PM
Uh what HP results you going off...and if you get the K&N it can be installed as a short ram allso. I get mine this week and well I will go with K&N mainly cause of name and the fact it is actualy cheaper if you look around (well was for me).

yes you could install the K&N as a short ram. and no CEL came on after I installed it. I didnt even disconnect the battery or reset the ECU. :P

duston831
03-06-2005, 04:10 PM
i also go the weapon r (it was cheaper than the K&N at the time) and it's awesome, had it for over 250 miles and no cell

bambams247
03-06-2005, 04:12 PM
Nice! Secret Weapon here I come, just need to find a good deal on one now!

uberscionofglendale
03-06-2005, 06:04 PM
but, you have to understand why the WR intake is better performance wise (although i'm not sure on that...haven't seen any proof). the filter isn't as good. so, if you wanna protect your engine and still get power gains...the k&n is the way to go. unless WR changed their filter that is. i know a few years ago they had filters almost as bad as blitz. anyways....they always look cool though :P

lvnurs9
03-06-2005, 08:58 PM
www.creativecompacts.com

NoShiO
03-06-2005, 10:14 PM
Uh what HP results you going off...and if you get the K&N it can be installed as a short ram allso. I get mine this week and well I will go with K&N mainly cause of name and the fact it is actualy cheaper if you look around (well was for me).

yes you could install the K&N as a short ram. and no CEL came on after I installed it. I didnt even disconnect the battery or reset the ECU. :P

yea my uncle was yelling at me the other day..
he said "why the F*** are you making your own short ram, K/N has a CAI/SRam all in one.... get that you bum!!! you got the money"
i said no they f***ing dont....
he said yea they do
well i guess im wrong....
so how much and where do i find the KnN CAI/Short Ram combo...
does it look as nice as the WR?
i really want WR.. probably will buy that
please before i go blow 200-300 bucks...

bambams247
03-06-2005, 10:26 PM
Secret Weapon should be cheaper than the other one cuz its got half the piping, but its the same price. Lame. Plus you have to get a K&N filter after that too for optimal performance, ouch. Im looking for maybe $150 shipped for a secret weapon intake.

NoShiO
03-06-2005, 10:35 PM
Secret Weapon should be cheaper than the other one cuz its got half the piping, but its the same price. Lame. Plus you have to get a K&N filter after that too for optimal performance, ouch. Im looking for maybe $150 shipped for a secret weapon intake.
i think the cheapest it ever was 195 shipped from CC before march 1st
but now they are back at 235 shipped...
its still pretty good... compared to the MSRP of 280..
but whats the info on the k&n shortram combo cold air?...

Swanny
03-07-2005, 12:34 AM
Has anybody really tried using the K&N as a short ram. I would like to see some pics of that. Not tring to be a hater but it just doesn't look like there is enough clearance for the filter on the end of the pipe. I would just like to know if it really can work that way. The filter on weapon r sw also seems to be a real high quality (not like a cheap ___ ebay filter or anything), but you can't beat K&N for filters, I guess, I'm no pro. hehe

duston831
03-07-2005, 12:41 AM
Secret Weapon should be cheaper than the other one cuz its got half the piping, but its the same price. Lame. Plus you have to get a K&N filter after that too for optimal performance, ouch. Im looking for maybe $150 shipped for a secret weapon intake.


your not including the inner pipe

bambams247
03-07-2005, 01:18 AM
Does someone have some install pics or detailed pics of the actual item? (tube, inner tube, intake, filter) Is it a special filter that allows 2 air flows or can I adapt a KN in there. PICS PLEASE! I am ready to buy alter this week!

Swanny
03-07-2005, 03:40 AM
Does someone have some install pics or detailed pics of the actual item? (tube, inner tube, intake, filter) Is it a special filter that allows 2 air flows or can I adapt a KN in there. PICS PLEASE! I am ready to buy alter this week!

I have a bunch of pics. I'll try to make up a quick how to in a couple days.

bambams247
03-07-2005, 04:56 AM
Does someone have some install pics or detailed pics of the actual item? (tube, inner tube, intake, filter) Is it a special filter that allows 2 air flows or can I adapt a KN in there. PICS PLEASE! I am ready to buy alter this week!

I have a bunch of pics. I'll try to make up a quick how to in a couple days.

Thank you much! Appriticate it!

KYBoy
03-07-2005, 05:06 AM
how do they sound?
I had a injen CAI on my 03 corolla and it gave a deep growl every time i would step on the gas.
I wanted to wait for the AEM, however i might end up getting the K&N b/c it is both short ram and CAI and it comes in blue and would match my car

DouBLeJ16
03-07-2005, 05:59 AM
K&N > weapon-r

duston831
03-07-2005, 07:16 PM
according to the dynos they're pretty much the same at max hp, but the k&n loses a little low end

Swanny
03-07-2005, 08:08 PM
I found this on another board. Dyno chart and pic for the WR SW intake. 6.5 HP and 3.6 TQ gains. Good luck to all with either intake.

http://www.clubsciontc.com/modules.php?name=Forums&file=viewtopic&t=2774

DouBLeJ16
03-08-2005, 09:03 AM
according to the dynos they're pretty much the same at max hp, but the k&n loses a little low end

the WR intake doesn't gain as much torque. also the lose of low end torque is below 3,000RPM's which wouldn't even matter if you were actually driving hard. I figure it might actually be a little easier to launch, not as much spinning.

if you have automatic it might matter a little but with a 5speed you're only below 3,000rpms for a split second in 1st gear then when you're shifting through the gears it never drops below 4,000.

yellot00tr
03-17-2005, 07:01 AM
i have the weapon r with their ram air kit-i f in love it. sounds awesome, looks good, pulls real nice over 3000 rpms. simple install for the intake-the ram air was a little bit of a pain in the ___, but def worth it. can't wait for the cold air box to come out.

LucidBD
03-17-2005, 01:18 PM
thinking about waiting for the AEM they will make the best CAI for the tC just ahve to have patience i guess

bambams247
03-17-2005, 01:21 PM
I wish they make an AEM V2 cuz that would be a good one. Other than that you cant say they will make the best cold air intake, because its not made yet. So lets wait and see the results. AEM regular CAI intakes are that super great, they dont even put out the best numbers, but their V2 intake is da shizzle!

JasonH
03-17-2005, 06:58 PM
i have the weapon r with their ram air kit-i f in love it. sounds awesome, looks good, pulls real nice over 3000 rpms. simple install for the intake-the ram air was a little bit of a pain in the ___, but def worth it. can't wait for the cold air box to come out.Do you have any pictures? Where can you get the ram air kit?

Whocares05050
03-17-2005, 07:06 PM
Has anybody really tried using the K&N as a short ram. I would like to see some pics of that. Not tring to be a hater but it just doesn't look like there is enough clearance for the filter on the end of the pipe. I would just like to know if it really can work that way. The filter on weapon r sw also seems to be a real high quality (not like a cheap ___ ebay filter or anything), but you can't beat K&N for filters, I guess, I'm no pro. hehe

even so, if the filter they send you is too big then you can always go out and buy a shorter k&n filter for like 30-40 bucks. no biggie!

______________

" LIFES A _____, GET OVER IT! "

cubaricantC
03-20-2005, 04:41 AM
Heres some pics of the blue K&N cold air, its 240 from crutchfield.

http://photos.yahoo.com/rickalm2000

GammaTNT
03-20-2005, 05:15 AM
both K&N and Weapon intakes on http://www.creativecompacts.com/ are $219

GammaTNT
03-20-2005, 05:15 AM
both K&N and Weapon R intakes on http://www.creativecompacts.com/ are $219

BigKid
03-20-2005, 06:00 AM
Heres some pics of the blue K&N cold air, its 240 from crutchfield.

http://photos.yahoo.com/rickalm2000

How long have you had your CAI...I talk to K/N on a regular basis, and I was told that the anodized red and blue were on a longer back order then the silver...but I suppose crutchfield may have received some that may have been off the first couple batches they produced.

I just got my silver CAI from K/N and should be installing it after I get back from church tomorrow. I couldn't have gotten a better deal especially considering I don't pay retail anymore :nope: ...hehehe...$221

I preferr K/N's overall track record...they've been in business longer then any of these newer companies...

Great construction...design...easy of installation. What more could you ask for?

cubaricantC
03-20-2005, 09:59 AM
i've had it for 2 days, the 240 was with next day air. Ordered it thursday got it friday at 9:30 am and it was on by 10:45 am. I got lucky cuz I work the graveyard shift and happened to be on crutchfields site. I had looked it up earlier and they said they were out of stock, within a span of ten minutes it said there was low stock so I ordered it. I called to confirm my order and the lady said it was the last one.

As for the intakes performance I am fairly impressed. I have an auto so I don't know how it is with the manual but it does pretty good. It seems like I lost a tiny bit on the bottom in terms of not mashing the gas but not enough to really affect anything but when I get on the gas hard it pulls a lot harder than stock.

NoShiO
03-20-2005, 01:45 PM
i've had it for 2 days, the 240 was with next day air. Ordered it thursday got it friday at 9:30 am and it was on by 10:45 am. I got lucky cuz I work the graveyard shift and happened to be on crutchfields site. I had looked it up earlier and they said they were out of stock, within a span of ten minutes it said there was low stock so I ordered it. I called to confirm my order and the lady said it was the last one.

As for the intakes performance I am fairly impressed. I have an auto so I don't know how it is with the manual but it does pretty good. It seems like I lost a tiny bit on the bottom in terms of not mashing the gas but not enough to really affect anything but when I get on the gas hard it pulls a lot harder than stock.did you get the CCA*somplete cold air* (the one that can convert to shortram) if so some pics please... cuz i have yet to see anyone convert it to short ram...

..ty

Scion-ce
03-20-2005, 02:47 PM
I'm getting the TRD exhaust put on next week. I was deciding between the K&N complete cold-air system and the WR secret weapon. I wonderin which one sounds better with the TRD axle-back. Does anyone have the combo? How does it sound? I don't want a fart can.

NoShiO
03-20-2005, 03:17 PM
I'm getting the TRD exhaust put on next week. I was deciding between the K&N complete cold-air system and the WR secret weapon. I wonderin which one sounds better with the TRD axle-back. Does anyone have the combo? How does it sound? I don't want a fart can.


when i contacted K&N they said they do not have a Complete Cold Air *CCA* (convertable to short ram)
and they said ithey were not plannin on making it..
but they also said the regular Cold Air System could be converted to shortram...
which yet has not been proven true...

if anyone can proove me wrong.. please do... cuz i want to be able to convert...

but goodluck

cubaricantC
03-20-2005, 10:03 PM
I didn't wan't the short ram version so I didn't keep it that way but yes it does work the tip of the filter actually sits right where the other half of the cold air enters the engine bay, its a tight squeeze. I didn't get any pics cuz my friend had the cam at the beach getting pics of beer bongs and women but maybe this coming weekend I'll take it apart and do it So I can Post some pics. But It does work Just take off lower half remove hump hose install filter to upper half.

NoShiO
03-20-2005, 11:06 PM
I didn't wan't the short ram version so I didn't keep it that way but yes it does work the tip of the filter actually sits right where the other half of the cold air enters the engine bay, its a tight squeeze. I didn't get any pics cuz my friend had the cam at the beach getting pics of beer bongs and women but maybe this coming weekend I'll take it apart and do it So I can Post some pics. But It does work Just take off lower half remove hump hose install filter to upper half.ty for the hope
but i cant believe it until i see it

then ill definitly get the silver CAI from k&n...

kauaiboitc
03-21-2005, 03:13 AM
installed k&n cai last weekend and so far so good. great sound and good high end pull. lost a little in the low-end but what the heck...i launch my car at around 3k anyways and that's where you'll fell the pull...
as for installation... i did it after having a couple (lost count) of drinks... pretty straightforward compared to some other cars i've dealt with. if you're afraid to get a little dirty..get the SW.
intake might work a lil better if you remove that plastic piece on the bumper where the fog light are suppose to be mounted.
IMO intake is an intake and they both will serve their purpose. gains are noticeable but not significant...i guess price and convience will determine your choice.

Audicted
03-21-2005, 03:37 AM
OK, so are intakes generally a bit parasitic to low-end grunt? I LOVE low-end grunt, and would rather enhance than lose it.....

BigKid
03-21-2005, 04:35 AM
Just got my put on this afternoon...luv it!

And man does it open up after 3G's... :shock:

Took it for a spin after I let the car idle for awhile after the install...I have to button up afew things...I hear a small leak some where...I'll have to pull it into the shop tomorrow and have it all check out. :question:

But for the most part easy installation...and great throaty sound too. So much for being conservative with the gas. Making a commute will be fun on the tollway... :P

Definitely going to be interesting to see how my mileage will be affected if hardly any, just gotta whatcha that lead foot now...stomping on the gas is addicting as ever! :lalala:

KYBoy
03-21-2005, 04:51 AM
Just got my put on this afternoon...luv it!

And man does it open up after 3G's... :shock:

Took it for a spin after I let the car idle for awhile after the install...I have to button up afew things...I hear a small leak some where...I'll have to pull it into the shop tomorrow and have it all check out. :question:

But for the most part easy installation...and great throaty sound too. So much for being conservative with the gas. Making a commute will be fun on the tollway... :P

Definitely going to be interesting to see how my mileage will be affected if hardly any, just gotta whatcha that lead foot now...stomping on the gas is addicting as ever! :lalala:

so its pretty loud?
is it louder than the WR SW?
if you need to hear the WR there is a video of it on the board
i will find it

KYBoy
03-21-2005, 04:57 AM
here is the link to the video

http://www.coppermine18.com/tc/vid/wrsound.wmv

kauaiboitc
03-21-2005, 05:30 AM
it's a "good" & addicting loud. it makes me wanna stomp on it so i can hear it. other than that my gas mileage is definitely going down...

BigKid
03-21-2005, 05:32 PM
it's a "good" & addicting loud. it makes me wanna stomp on it so i can hear it. other than that my gas mileage is definitely going down...

It makes passing traffic in the slow lane alot more fun I can tell you that much! hahaha. The air coming through is a very aggressive vaccum of air...I can hear over my stero...its insane...

I'll have to listen to the clip when I get home...can't heard much out of my office computer.

qbnlykwhoa
03-22-2005, 12:17 AM
so both lose a little on the low end?

KYBoy
03-22-2005, 03:18 AM
[quote="kauaiboitc"

I'll have to listen to the clip when I get home...can't heard much out of my office computer.

Thanks

BigKid
03-22-2005, 03:44 AM
I think its bit louder then the WR...

Like I said...its INSANE :eyes:

As I said as you approach 3,000rpms the intake just takes over the cabin...you feel it kinda rumble the car, and as soon as you shift...it starts all over again. The speed at which you get to 5th is awesome. Great top end...but I do miss my low end at times :(

KYBoy
03-22-2005, 04:10 AM
is the low-end loss that noticable?

ty6
03-22-2005, 04:12 AM
Nice! Secret Weapon here I come, just need to find a good deal on one now!

I found a good prices here: http://www.autoaccessorystore.com/home.asp?dir=search_res&cat=7&cat_name=Performance&sub_id=26&sub_name=Air%20Intakes&sec_id=56&sec_name=Weapon%20R%20Intakes&OVRAW=secret%20weapon%20r%20intake&OVKEY=intake%20secret%20weapon%20r&OVMTC=standard

BigKid
03-22-2005, 04:15 AM
is the low-end loss that noticable?

Oooh yea.. :shock:

KYBoy
03-22-2005, 04:20 AM
^^^^^^^^^^^^^^^^^
do you have an auto or 5 spd?

i might hold out and see how the AEM and INJEN performs

BigKid
03-22-2005, 05:33 AM
I have a 5spd...

And don't let that comment I made scare you...you'll lose low end torque, its a given...but not as much as you think. The car still performs as it should under normal driving conditions.

I really can't compare it to anything...except through word of mouth...and I only take that for face value. So may things contribute to the overall performance of the vehicle. This is my 1st performance mod...so as far as I'm concerned, it performing as it should. I'm happy.

I'm sure when AEM comes out with theirs, it will put on the chopping block along with the others for examining.

Giravani
03-22-2005, 07:56 PM
I just installed my K&N last night, and although the install was a little more annoying than I would have liked (due to the lack of a proper tool set), the results are insane. Combined with the TRD exhaust this setup sounds MEAN. Anything over 3,000 RPMs and the whole cabin is flooded with a nice throaty engine roar. The performance is very noticeable, and I didn't notice any large amounts of low-end power loss. You'll love it!

toyota_scion_tc
03-22-2005, 09:22 PM
bambams247
I have not gotten a CEL with the WR SW intake. When I installed it I reset the ECU (unhooked neg batt cable while installing) and then let the car idle for about 5 mins after the install. Then when first driving I took it easy on it for the first couple miles so the ECU could adjust to the new air flow. I believe Weapon R also changed the piping where the MAF sensor mounts from earlier models of this intake. I am yet to hear of a CEL with this new model of the intake. I'm also looking forward to a heatshield for it, don't believe it's out yet.

If anyone has a problem with the Weapon R Secret Weapon Intake then get a bigger o-ring for the maf sensor that is why it has been throwing a cel.

vanberge
03-31-2005, 11:38 PM
Ok dudes... Here's my dillemma. I totally want to buy the K&N intake.. They are really a proven name.

HOWEVER: I am pretty scared about the hydro lock deal. What about snow too? I live in michigan so the winters can be pretty brutal.

Basically, I want K&N, but feel like I have to go with WR. The K&N, although people say it "Can" be configured as a short ram, does not look like it was designed that way.

input!?!?

toyota_scion_tc
04-01-2005, 02:39 AM
Ok dudes... Here's my dillemma. I totally want to buy the K&N intake.. They are really a proven name.

HOWEVER: I am pretty scared about the hydro lock deal. What about snow too? I live in michigan so the winters can be pretty brutal.

Basically, I want K&N, but feel like I have to go with WR. The K&N, although people say it "Can" be configured as a short ram, does not look like it was designed that way.

input!?!? the weapon r actually dyno's better than the k&n! Its a short ram also you won't have to worry about it.

nycazn79
04-01-2005, 03:22 AM
HOWEVER: I am pretty scared about the hydro lock deal. What about snow too? I live in michigan so the winters can be pretty brutal.
Basically, I want K&N, but feel like I have to go with WR. The K&N, although people say it "Can" be configured as a short ram, does not look like it was designed that way.
input!?!?

If you're scared of hydro lock, get a AEM bypass valve for $35-$45. You'll need the 2.75" and to cut off about an inch off the tubing.

sheep
04-01-2005, 04:41 AM
What does everyone think of the WR name? Does anyone think that they can be trusted not to blow my engine up?

franktherank
04-01-2005, 05:37 AM
given, any intake would kill low end somewhat, and technically cold air would give up more low end than a short ram, but would give better high end than SR....so its all up to y.o.u.
as for me, im still deciding....

Maverick128
04-01-2005, 04:05 PM
I'm new to the whole tuning thing (I owned a Taurus before this) and so I'm a little ignorant as to what the different terms mean and what not. So if you guys could help, that would be great. First off, what is "hydro lock" and is it really something to worry about. If it is, is there anyway to defend against it. Also, I've heard about the check engine light coming on in different circumstances. Will this happen with the K&N CAI? How would you fix that? Also, my main concern would be voiding my warranty. Will adding a CAI void my warranty? This question should preferably be answered by a dealer or owner with experience taking in their car after adding this. Am I going to have to take it off and put on the stock box every time I need to take it in for service? Thank you for your time and responses.

vanberge
04-01-2005, 10:18 PM
Hydrolock is when your intake sucks in water, essentially ruining the engine. I've heard that its pretty much a complete myth as long as your car isnt submerged, but I am still paranoid.

For K&N intake owners: where did you buy yours? I also am hesitant to throw my credit card info into any generic website.

Still trying to decide between K & N / weapon R. K&N does not appear that it is designed to be short rammed.

According to Scion, it 'could' void parts of your warranty. I.E. if you had engine problems. However, wouldnt effect like your AC or your sunroof, etc.

vanberge
04-02-2005, 05:48 AM
FYI: found this on K&N's website.

"16. Will the use of a K&N filter void my factory warranty?

It is against the law for a manufacturer to require the use of a specific brand of air filter unless it provides a replacement air filter, free of charge, under the terms of the warranty. For a more thorough discussion of this law known as the Magnuson-Moss Warranty, see our Vehicle Warranty Section of our Air Filter Facts page. Also see our Letter Regarding Vehicle Warranty and K&N Replacement Filters."

Marshall
04-15-2005, 03:13 PM
I thought about going ahead with the K&N for better top end speed. I live in FL and it gets hot, so that is why I am leaning toward the K&N Typhoon Cool Air Intake.

However, every scion auto parts website that I have contacted, is completely sold out of the K&N.

Any updates? :pray:

PhatBuddha
04-15-2005, 08:01 PM
I just put the weapon r on and I love it, couldn't be more excited!

SquallLHeart
04-17-2005, 12:37 AM
okay.. for those contemplating the K&N.. it comes with a Drycharger that protects water from entry.. it's just a sleeve that goes around the filter... so unless your car is underwater.. i doubt hydrolocking's gonna be an issue..

second, i looked at the K&N and though it looks like it can be configured as a SR.. it might require you to by another filter though as the one it comes with seems to be too large to fit.. i never really tested it out myself..

and last, i didn't get any problems with a CEL or anything.. so unless you totally messed up your installation in some ungodly way.. i don't see it happening.

i have it and love it.

ivandrios
04-17-2005, 06:08 AM
whats a bypass valve??

PunkInDrublic
04-17-2005, 06:10 AM
It's a foam insert thats inserted somewhere between the filter and the MAF. So that if your filter end is submerged in water, the negative pressure of the suction can be relieved by air coming in from the bypass valve, this prevents water from getting sucked into the engine like a straw, resulting in a hydrolock

yellot00tr
04-17-2005, 06:14 AM
i have the weapon r and added the ram air kit. i love it-it sounds awesome, you can feel the pull when the rpms are up and it looks good. plus, it's much easier to install-i dunno if that makes a diff to you. also, take a look at this page. it's from weapon r showing the air flow diff between their filter and the k&n.
http://www.weapon-r.com/store/agora.cgi?cart_id=4976967.8278*Xa3le5&p_id=00102&xm=on&ppinc=search2

weapon r will also be making either the cold air box or a heat shield for the filter at some point soon supposedly.