K&N Typhoon Cold Air Intake Review
#1
K&N Typhoon Cold Air Intake Review
Here is a review and some pics of the K&N Typhoon intake and some preliminary test results. The results were taken with an OBD2 scanner to note the difference of outside temperature, air intake temperature during idle, cruise and WOT. I started the test when coolant temp has reached to operation temp of 185F to 187F. Both before and after tests were done from a cold engine start to eliminate heat soak from a long running or idling engine. However, please keep in mind that the two tests were done on a different day with different outside temp. This test result is only meant to be a comparison of outside and intake temp.
Before K&N installation:
Engine coolant temp = 185F to 187F
Outside temp = 48F
Intake temp @ idle = 68F
Intake temp @ cruise speed of 65 MPH, 3500 RPM = 64F
Intake temp @ WOT from 2500 RPM to 6500 RPM in 3rd gear = 66F
After K&N installation:
Engine coolant temp = 185F to 187F
Outside temp = 39F
Intake temp @ idle = 46F
Intake temp @ cruise speed of 65 MPH, 3500 RPM = 43F
Intake temp @ WOT from 2500 RPM to 6500 RPM in 3rd gear = 43F
K&N intake noise level:
Q: Is it noisy during idle?
A: I didn't notice any additional noise during idle at all. The noise from the the cooling fan, and normal engine sound are much louder if there were any intake noise to begin with.
Q: Is it noisy while cruising?
A: No noticeable noise increase while cruising at part throttle all the way up to 4500 RPM.
Q: Is it noisy while shifting?
A: I did some quick 1,2,3,4 shifting part throttle up to 4000 RPM without noticing any additional noise.
Q: Is it noisy during decelaration?
A: No noticeable noise increase during deceleration from cruising speed.
Q: Is it noisy during downshift?
A: No noticeable noise increase during downshift to 4th from 5th (3500 RPM) and then part throttle back to 4500 RPM.
Q: Is it noisy @ WOT?
A: Noise? Are you kidding? The sound it emits is the sound of a healthy breathing engine unleashed! The intake sound level increases ONLY if you put the pedal to the metal. The sound is noticeable starting at around 3500 RPM during WOT. It actually sounds very sweet like a fine tuned engine with a nice hum. The sound level continues to increase to a little pass 6000 RPM and it changes tone when VTEC kicks in. Then the real animal inside the engine comes out to play and revs all the way to redline! This is when you wish the redline is higher so the fun won't stop!
Q: Do you feel the HP or torque increase?
A: Honestly, since the car is so heavy, I can't say that I notice any HP or torque increase. I was too occupied enjoying the engine sound @ WOT! However, I'm planning to find out on a dyno.
Here are some pics:
![](http://www.tsobad.com/jtso/Images/K&N%20intake/KN%20intake.JPG)
![](http://www.tsobad.com/jtso/Images/K&N%20intake/Intake%20tube%203.JPG)
![](http://www.tsobad.com/jtso/Images/K&N%20intake/Intake%20tube.JPG)
![](http://www.tsobad.com/jtso/Images/K&N%20intake/CAI.JPG)
![](http://www.tsobad.com/jtso/Images/K&N%20intake/KN%20filter.JPG)
I decided to slot out the fog light cover for more air and installed a mesh behind it to keep the bugs out.
![](http://www.tsobad.com/jtso/Images/K&N%20intake/vent%20cover.JPG)
K&N uses some very high quality hardware for the installation. It uses 100% factory mounting location and retain 100% of the factory emission connections.
![](http://www.tsobad.com/jtso/Images/K&N%20intake/SS%20Clamp.JPG)
![](http://www.tsobad.com/jtso/Images/K&N%20intake/Mounting%20bracket.JPG)
![](http://www.tsobad.com/jtso/Images/K&N%20intake/Stock%20mounting%20location.JPG)
![](http://www.tsobad.com/jtso/Images/K&N%20intake/stock%20connections.JPG)
Stock intake system components:
Before K&N installation:
Engine coolant temp = 185F to 187F
Outside temp = 48F
Intake temp @ idle = 68F
Intake temp @ cruise speed of 65 MPH, 3500 RPM = 64F
Intake temp @ WOT from 2500 RPM to 6500 RPM in 3rd gear = 66F
After K&N installation:
Engine coolant temp = 185F to 187F
Outside temp = 39F
Intake temp @ idle = 46F
Intake temp @ cruise speed of 65 MPH, 3500 RPM = 43F
Intake temp @ WOT from 2500 RPM to 6500 RPM in 3rd gear = 43F
K&N intake noise level:
Q: Is it noisy during idle?
A: I didn't notice any additional noise during idle at all. The noise from the the cooling fan, and normal engine sound are much louder if there were any intake noise to begin with.
Q: Is it noisy while cruising?
A: No noticeable noise increase while cruising at part throttle all the way up to 4500 RPM.
Q: Is it noisy while shifting?
A: I did some quick 1,2,3,4 shifting part throttle up to 4000 RPM without noticing any additional noise.
Q: Is it noisy during decelaration?
A: No noticeable noise increase during deceleration from cruising speed.
Q: Is it noisy during downshift?
A: No noticeable noise increase during downshift to 4th from 5th (3500 RPM) and then part throttle back to 4500 RPM.
Q: Is it noisy @ WOT?
A: Noise? Are you kidding? The sound it emits is the sound of a healthy breathing engine unleashed! The intake sound level increases ONLY if you put the pedal to the metal. The sound is noticeable starting at around 3500 RPM during WOT. It actually sounds very sweet like a fine tuned engine with a nice hum. The sound level continues to increase to a little pass 6000 RPM and it changes tone when VTEC kicks in. Then the real animal inside the engine comes out to play and revs all the way to redline! This is when you wish the redline is higher so the fun won't stop!
Q: Do you feel the HP or torque increase?
A: Honestly, since the car is so heavy, I can't say that I notice any HP or torque increase. I was too occupied enjoying the engine sound @ WOT! However, I'm planning to find out on a dyno.
Here are some pics:
I decided to slot out the fog light cover for more air and installed a mesh behind it to keep the bugs out.
K&N uses some very high quality hardware for the installation. It uses 100% factory mounting location and retain 100% of the factory emission connections.
Stock intake system components:
#5
Audi Driving Snob
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taht's some good IAT info. Factory dyno for the k&n looks just like the injen which makes sense since they are a similar design.
Ah...so you did slot the intake cover...what tools di dyou use?
Also is the k&n a 3 inch pipe?
Ah...so you did slot the intake cover...what tools di dyou use?
Also is the k&n a 3 inch pipe?
#6
I used a dremel tool with this funny looking bit in the pic. I drilled a hole at the corner of the slot from the rear side of the fog cover. Then I used the cutting bit and just cut around the slot to create the opening. Btw, the cutting bit cuts the plastic like butter. I later used a file to smooth out any rough edges.
![](http://www.tsobad.com/jtso/Images/K&N%20intake/Dremel.JPG)
TinkySD, The dia. of the pipe is about 2-5/8 or 2-3/4.
tsxer.ca, It depends on what the warranty issue is. If the mod directly or indirectly causing a problem, then it can be a problem with the warranty claim. However, if the problem isn't related to the mod, then I wouldn't worry about it. After all, I can easily reinstall the stock intake system prior to taking it to the dealer.
TinkySD, The dia. of the pipe is about 2-5/8 or 2-3/4.
tsxer.ca, It depends on what the warranty issue is. If the mod directly or indirectly causing a problem, then it can be a problem with the warranty claim. However, if the problem isn't related to the mod, then I wouldn't worry about it. After all, I can easily reinstall the stock intake system prior to taking it to the dealer.
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#11
I ordered mine from one of the online K&N dealers here http://www.knfilters.com/typhoon/TyphoonOnline.htm . They are all about the same price with free shipping ($211.97). However, I later found a lower price of $185 after I received my order.
http://shop.store.yahoo.com/hopup1/enpe19.html .
The blue one should look pretty good with your car.
![Mad](https://acurazine.com/forums/images/smilies/mad.gif)
The blue one should look pretty good with your car.
![Wink](https://acurazine.com/forums/images/smilies/wink.gif)
#13
Originally posted by AZTSX
what is that stuff around the filter?? jw thx
what is that stuff around the filter?? jw thx
#14
The black cover is called the dry charger to help prevent water from contacting the air filter.
I'm sure the power increase is there, as indicated on the K&N dyno sheet. It's just not very noticeable to me, as I'm used to driving a supercharged Civic where power and torque are very noticeable. The kind of power that will throw you back to your seat.
I'm sure the power increase is there, as indicated on the K&N dyno sheet. It's just not very noticeable to me, as I'm used to driving a supercharged Civic where power and torque are very noticeable. The kind of power that will throw you back to your seat.
![Wink](https://acurazine.com/forums/images/smilies/wink.gif)
#15
Originally posted by JTso
The black cover is called the dry charger to help prevent water from contacting the air filter.
The black cover is called the dry charger to help prevent water from contacting the air filter.
#16
ABP TSX
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Originally posted by dabuda2004
nice, where did you buy the dry charger? and is it universal? looks like it, thanks!
nice, where did you buy the dry charger? and is it universal? looks like it, thanks!
You can order them at 4filters.com for $28.46, but they may be cheaper somewhere else. I have ordered from 4filters before with no problem.
#17
Originally posted by dabuda2004
nice, where did you buy the dry charger? and is it universal? looks like it, thanks!
nice, where did you buy the dry charger? and is it universal? looks like it, thanks!
If it's the same size as yours, then you can get it from here or here
HTH...
#18
Kickstand
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I've said it before and I'll say it again....THE DRYCHARGER IS A MUST HAVE!! The area were the filter sits after either of the cold air kits is not watertight at all. I had to special order the drycharger for my injen filter. I have the part #'s at home for that one if anyone would like it.
#19
Bye TSX, hello domestic?
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Originally posted by Jab31169
I have the part #'s at home for that one if anyone would like it.
I have the part #'s at home for that one if anyone would like it.
#22
Originally posted by Faid
I dont mind the P/N either
if i install it do i have to take the bumper off again??
I dont mind the P/N either
if i install it do i have to take the bumper off again??
#23
thanks for the info gsclifton and jtso!
yes please, i'm planning to get the injen filter thru the importave GB. we have sporadic showers where i am so the drycharger would be a must. but it wouldnt be much help in 1-2 feet of water right?
Originally posted by Jab31169
...I had to special order the drycharger for my injen filter. I have the part #'s at home for that one if anyone would like it.
...I had to special order the drycharger for my injen filter. I have the part #'s at home for that one if anyone would like it.
![Big Grin](https://acurazine.com/forums/images/smilies/biggrin.gif)
#28
Dyrcharger part number is listed here. RX-4730DK
I ordered the red one from Hopup.
http://knfilters.com/typhoon/tappguide.html
I ordered the red one from Hopup.
http://knfilters.com/typhoon/tappguide.html
#29
Today I got to ride in and "race" a TSX with K&N intake and here are my impressions. First, I cannot dispute the dynos and results posted, and, in fact, these result have had me truly considering this modification to my own TSX. The modified TSX is just like mine (5AT non-navi). Seat of the pants feeling from getting out of mine and into my friend's - no difference. Sound: Noticeable wonderful sound difference at higher revs...no real difference in just normal driving. Now here's where things get weird.
We informally "raced" each other. My TSX was quicker off the line and at no point lost groud to my friend's TSX with the intake. Both of us just flooring the pedal and going. There certainly was no real difference in performance that we could assertain after about 15 minutes of "cat and mouse highway tag."
Without a doubt the high RPM sounds are wonderful with the intake, but, from my own personal observations, I would not spend the money based on a performance gain...but then again..it did sound awfully nice.
We informally "raced" each other. My TSX was quicker off the line and at no point lost groud to my friend's TSX with the intake. Both of us just flooring the pedal and going. There certainly was no real difference in performance that we could assertain after about 15 minutes of "cat and mouse highway tag."
Without a doubt the high RPM sounds are wonderful with the intake, but, from my own personal observations, I would not spend the money based on a performance gain...but then again..it did sound awfully nice.
#30
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Do you two have similar mileages on your cars? Maybe your car being more broken in than your friend's may have given you a performance advantage that offset the CAI's performance increase. Can you think of any other differences between the two TSX'es that may have made a difference? Plus, it was in CAI mode, right?
#31
Kickstand
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Originally posted by SilverTSXinPA
but, from my own personal observations, I would not spend the money based on a performance gain...but then again..it did sound awfully nice.
but, from my own personal observations, I would not spend the money based on a performance gain...but then again..it did sound awfully nice.
![](http://www.imagestation.com/picture/sraid91/p07aa423405b6489100fcd80835e23d89/fa5a125e.jpg)
#32
Senior Moderator
Jab, Injen Automatic dynos show a 12HP gain, just like the 6MT TSX.
I don't think I'll get an intake until/if Hondata becomes available. I don't think the Intake alone is enough to noticeably affect performance, just like SilverTSXinPA has observed.
I don't think I'll get an intake until/if Hondata becomes available. I don't think the Intake alone is enough to noticeably affect performance, just like SilverTSXinPA has observed.
#33
Originally posted by SilverTSXinPA
Without a doubt the high RPM sounds are wonderful with the intake, but, from my own personal observations, I would not spend the money based on a performance gain...but then again..it did sound awfully nice.
Without a doubt the high RPM sounds are wonderful with the intake, but, from my own personal observations, I would not spend the money based on a performance gain...but then again..it did sound awfully nice.
the only way to tell is to do before and after drag times. dyno results don't mean shit if the car is not any faster.
#34
Originally posted by yrbzephyr
Do you two have similar mileages on your cars? Maybe your car being more broken in than your friend's may have given you a performance advantage that offset the CAI's performance increase. Can you think of any other differences between the two TSX'es that may have made a difference? Plus, it was in CAI mode, right?
Do you two have similar mileages on your cars? Maybe your car being more broken in than your friend's may have given you a performance advantage that offset the CAI's performance increase. Can you think of any other differences between the two TSX'es that may have made a difference? Plus, it was in CAI mode, right?
#35
Originally posted by KJLite
...the only way to tell is to do before and after drag times. dyno results don't mean shit if the car is not any faster...
...the only way to tell is to do before and after drag times. dyno results don't mean shit if the car is not any faster...
#37
Originally posted by domn
Jab, Injen Automatic dynos show a 12HP gain, just like the 6MT TSX.
I don't think I'll get an intake until/if Hondata becomes available. I don't think the Intake alone is enough to noticeably affect performance, just like SilverTSXinPA has observed.
Jab, Injen Automatic dynos show a 12HP gain, just like the 6MT TSX.
I don't think I'll get an intake until/if Hondata becomes available. I don't think the Intake alone is enough to noticeably affect performance, just like SilverTSXinPA has observed.
#38
Sile
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Dam, that intake is killing itself. I have never seen so many bends before. That 90 degree bend is like adding 15 feet of straight pipe to it. Id like to see a short ram, with a filter right where the first pipe meets the second with the black adapter. No vacuum, and the temp isn't going to make all that much of a difference.
#39
Originally posted by tsXgtp
Dam, that intake is killing itself. I have never seen so many bends before. That 90 degree bend is like adding 15 feet of straight pipe to it. Id like to see a short ram, with a filter right where the first pipe meets the second with the black adapter. No vacuum, and the temp isn't going to make all that much of a difference.
Dam, that intake is killing itself. I have never seen so many bends before. That 90 degree bend is like adding 15 feet of straight pipe to it. Id like to see a short ram, with a filter right where the first pipe meets the second with the black adapter. No vacuum, and the temp isn't going to make all that much of a difference.
#40
Photography Nerd
Nothing like a head to head dyno to prove it. Should be pretty easy if someone has already installed it as CAI. Just a matter of changing filter locations.