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Old 01-20-2018, 03:54 AM   #1
Pablo808
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Default What's the best cold air intake and what do you run?

So, I currently own a Base Model 2016 Subaru WRX 2.0L. I've had it for almost two years.
Currently all bone stock. Only actual stuff done to the car are HID's and a Greddy oil drain plug.
(Because the dealership decided to use a 15mm or a SAE socket instead of 14mm and had to buy myself a new one)
Anyways. I was looking at a few cold air intakes like,
Perrin, AEM, K&N
$328.50 $300 $236.99

K&N's website says that their "Typhoon Cold Intake" has a 9.16HP gain for the WRX models.

I was reading about Perrin intakes and that their HP gain difference was only
3-8HP.

Then onto reading about AEM, their gain difference was a 15-wtq at around 3700rpms and 3HP difference with a 10-15 whp across their last 1000rpms on their dyno run, but that's top end HP difference at 6k. Don't know if that'll do anything since my turbo starts to tartar at 4.5k.

I was thinking of getting K&N's intake since they were the cheapest with the most HP difference.
What do you guys think? What cold intakes do you run and what are your HP differences?
Thanks
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Old 01-20-2018, 04:01 AM   #2
Colin1337
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Unless you are planning on getting a tune with an intake, you'll probably do more harm the than good/lose power...
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Old 01-20-2018, 05:48 AM   #3
GlarryHoodDIT
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Any modifications to the fuel, intake, exhaust, or engine requires the appropriate engine management. I.e. a Cobb Accessport, $500 used- if you can find one or $650 brand new. You can either use Cobb' s Off the Shelf (OTS) Maps or you can get yourself a custom tune. OTS Maps are free but require you follow their exact specifications, down to the brand and part #. E tunes and Pro tunes are more expensive, but can yield custom tunes to whatever your mod list may be, and are generally safer for the car and more powerful as well.

Another route would be to skip the intake, purchase the Accessport (which is REQUIRED either way), and load the stage 1 tune and see how that feels. It will more than likely be powerful enough with all stock hardware.
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Old 01-20-2018, 08:38 AM   #4
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As the previous 2 have stated, you would need a tune if you run a CAI. Another option besides an access port is getting the Tactrix 2.0 and going open source but you would need to get the car protuned regardless.

As for intakes go, in my previous 04 STI, I had an APS CAI but APS stopped making parts a long time ago. I switched to a KS Tech short ram and I liked it but I noticed the heat soak but didn't have to worry about the possibility of hydrolocking my motor if it rained heavy.

I am not a fan of CAIs when I was living in FL due to heavy rain and hurricanes. Also not a fan of K&N due to having to re-oil the intake filter after cleaning. AEM does make nice dry filters.

Besides researching HP gains, you should also research the maintenance on the filters and if they can be reusable or have to be replaced.

Just because it is a cheaper option doesn't always mean it will be a better one.
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Old 01-20-2018, 08:41 AM   #5
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Stock and will continue even after warranty is over.
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Old 01-20-2018, 08:46 AM   #6
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Most intakes will reduce power, not increase it. K&N is full of ****. Look at the stock intake. Is there a section that gets air from the front edge of the hood? Look at garbage like short rams. Where's the air coming from? Underhood air, which is much hotter than outside air. Yah, they make way cool noises.....wow. But they don't increase power whatsoever.
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Old 01-20-2018, 08:56 AM   #7
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If you really need an intake (And trust me, the wooshy noises are addicting) the best way to do it is likely to purchase Cobb's stage 1 package. It's their AP and intake. The OTS maps will allow the use of their intake, and their intake only.

That's the "safest" way to do it besides a custom tune.
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Old 01-20-2018, 04:01 PM   #8
Pablo808
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Thanks guys for the feedback. Iím just starting to actually do something with the car after owning it for two years and actually having money to do something.
Iíll look into COBBS accessport or at least the stage 1 package w/ the intake it comes with.
A dude that I bought my STI wing from is selling a COBBS accessport for $450, but would have to send it to COBBS to get it unmarried, not do I know how much it is to get that done. Was thinking getting either that since it was cheaper, or just a brand new one if the price difference wasnít as bad.
I really wasnít sure if CAIís would do much, since itís already turbo aspirated and itís already getting its cold air from the inter cooler.
Iím used to Hondaís not needing to tune after throwing upgrades to it. Iíd like to change it up with the Subaru game.
Any other modifications recommendations? I was thinking about getting an aftermarket exhaust, just because it sounds too quiet for me.
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Old 01-20-2018, 04:06 PM   #9
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Quote:
Originally Posted by Colin1337 View Post
Unless you are planning on getting a tune with an intake, you'll probably do more harm the than good/lose power...
Iíll look into of getting COBBS accessport.
So Iím guessing all this talk from Subispeed and other sites saying ďno need of tuningĒ for their parts is a load of garbage.
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Old 01-20-2018, 04:13 PM   #10
Colin1337
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Quote:
Originally Posted by Pablo808 View Post
Iíll look into of getting COBBS accessport.
So Iím guessing all this talk from Subispeed and other sites saying ďno need of tuningĒ for their parts is a load of garbage.
You could do it, and it might work for a little while. But a tune is cheap insurance on your engine.
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Old 01-20-2018, 04:22 PM   #11
Pablo808
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Quote:
Originally Posted by Jack View Post
Most intakes will reduce power, not increase it. K&N is full of ****. Look at the stock intake. Is there a section that gets air from the front edge of the hood? Look at garbage like short rams. Where's the air coming from? Underhood air, which is much hotter than outside air. Yah, they make way cool noises.....wow. But they don't increase power whatsoever.
Thatís what I thought too. But Iíd rather ask what anyone thought, since Iím pretty new to the Subaru game. Should I just go with a COBBS Accessport and run that tune?
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Old 01-20-2018, 04:23 PM   #12
Pablo808
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Quote:
Originally Posted by Colin1337 View Post
You could do it, and it might work for a little while. But a tune is cheap insurance on your engine.
The CAI working for a little while or the Accessport?
Iím thinking about getting an accessport and an axle back exhaust mostly for my car.
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Old 01-20-2018, 07:41 PM   #13
Charlie-III
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Quote:
Originally Posted by Pablo808 View Post
So, I currently own a Base Model 2016 Subaru WRX 2.0L. I've had it for almost two years.
Currently all bone stock. Only actual stuff done to the car are HID's and a Greddy oil drain plug.
(Because the dealership decided to use a 15mm or a SAE socket instead of 14mm and had to buy myself a new one)
Anyways. I was looking at a few cold air intakes like,
Perrin, AEM, K&N
$328.50 $300 $236.99

K&N's website says that their "Typhoon Cold Intake" has a 9.16HP gain for the WRX models.

I was reading about Perrin intakes and that their HP gain difference was only
3-8HP.

Then onto reading about AEM, their gain difference was a 15-wtq at around 3700rpms and 3HP difference with a 10-15 whp across their last 1000rpms on their dyno run, but that's top end HP difference at 6k. Don't know if that'll do anything since my turbo starts to tartar at 4.5k.

I was thinking of getting K&N's intake since they were the cheapest with the most HP difference.
What do you guys think? What cold intakes do you run and what are your HP differences?
Thanks
Stock on a Subaru UNLESS you have bumped the power quite a bit! Especially MAF based engines!

Quote:
Originally Posted by Colin1337 View Post
Unless you are planning on getting a tune with an intake, you'll probably do more harm the than good/lose power...
Agreed.

Quote:
Originally Posted by GlarryHoodDIT View Post
Any modifications to the fuel, intake, exhaust, or engine requires the appropriate engine management. I.e. a Cobb Accessport, $500 used- if you can find one or $650 brand new. You can either use Cobb' s Off the Shelf (OTS) Maps or you can get yourself a custom tune. OTS Maps are free but require you follow their exact specifications, down to the brand and part #. E tunes and Pro tunes are more expensive, but can yield custom tunes to whatever your mod list may be, and are generally safer for the car and more powerful as well.

Another route would be to skip the intake, purchase the Accessport (which is REQUIRED either way), and load the stage 1 tune and see how that feels. It will more than likely be powerful enough with all stock hardware.
Quote:
Originally Posted by Ishbu0062 View Post
As the previous 2 have stated, you would need a tune if you run a CAI. Another option besides an access port is getting the Tactrix 2.0 and going open source but you would need to get the car protuned regardless.

As for intakes go, in my previous 04 STI, I had an APS CAI but APS stopped making parts a long time ago. I switched to a KS Tech short ram and I liked it but I noticed the heat soak but didn't have to worry about the possibility of hydrolocking my motor if it rained heavy.

I am not a fan of CAIs when I was living in FL due to heavy rain and hurricanes. Also not a fan of K&N due to having to re-oil the intake filter after cleaning. AEM does make nice dry filters.

Besides researching HP gains, you should also research the maintenance on the filters and if they can be reusable or have to be replaced.

Just because it is a cheaper option doesn't always mean it will be a better one.
Yep, CAI's can have their own issues on any car.

Quote:
Originally Posted by tramp View Post
Stock and will continue even after warranty is over.
Not a bad move.

Quote:
Originally Posted by Jack View Post
Most intakes will reduce power, not increase it. K&N is full of ****. Look at the stock intake. Is there a section that gets air from the front edge of the hood? Look at garbage like short rams. Where's the air coming from? Underhood air, which is much hotter than outside air. Yah, they make way cool noises.....wow. But they don't increase power whatsoever.
Some intakes increase power in some dyno plots, usually due to messing with MAF airflow so it goes lean. Great for power......until you roast an engine.
Basically agree.

Quote:
Originally Posted by Obviously Tyler View Post
If you really need an intake (And trust me, the wooshy noises are addicting) the best way to do it is likely to purchase Cobb's stage 1 package. It's their AP and intake. The OTS maps will allow the use of their intake, and their intake only.

That's the "safest" way to do it besides a custom tune.
Agreed.

Quote:
Originally Posted by Pablo808 View Post
Iíll look into of getting COBBS accessport.
So Iím guessing all this talk from Subispeed and other sites saying ďno need of tuningĒ for their parts is a load of garbage.
Without looking at a dyno plot, yes, they may have a high power spike, but "area under the curve" gives better useful gains than some "mystical number".
I would give up max numbers for area under the curve.

In general, unless highly modded, the OEM Subaru intake will support roughly a 30% power increase with no issues.
You want "sound", fine. Don't come back later complaining for an untuned intake causing your engine to fail.
This is not a Honda.

Your car, your choice.
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Old 01-20-2018, 07:57 PM   #14
Pablo808
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Quote:
Originally Posted by Charlie-III View Post
Stock on a Subaru UNLESS you have bumped the power quite a bit! Especially MAF based engines!







Agreed.











Yep, CAI's can have their own issues on any car.







Not a bad move.







Some intakes increase power in some dyno plots, usually due to messing with MAF airflow so it goes lean. Great for power......until you roast an engine.

Basically agree.







Agreed.







Without looking at a dyno plot, yes, they may have a high power spike, but "area under the curve" gives better useful gains than some "mystical number".

I would give up max numbers for area under the curve.



In general, unless highly modded, the OEM Subaru intake will support roughly a 30% power increase with no issues.

You want "sound", fine. Don't come back later complaining for an untuned intake causing your engine to fail.

This is not a Honda.



Your car, your choice.


Thanks for you opinion. Iíll worry about fine tune before I do anything else to the car.
Yes, I know this isnít a honda, I was just stating thatís where I started from and how Iím used to running a Honda. This is my first time actually doing something to my Subaru so Iíd figured to grab opinion here rather than throwing parts on my car and end up finding out that itís bad for my car. I understand your point.
Thatíll probably be my next purchase for this car, a COBBS accessport.
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Old 01-20-2018, 08:01 PM   #15
Mulder
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Quote:
Originally Posted by Pablo808 View Post
A dude that I bought my STI wing from is selling a COBBS accessport for $450, but would have to send it to COBBS to get it unmarried, not do I know how much it is to get that done. Was thinking getting either that since it was cheaper, or just a brand new one if the price difference wasn’t as bad.
A married Accessport for $450? Hell no, that's about what a properly unmarried one goes for. It costs about $300 to have Cobb unmarry/recertify it so it would end up costing you more than a new one.
If you can get it for $100, then maybe. Otherwise it's not worth the hassle, get a new one from one of our NASIOC vendors or pick up an unmarried used one in the classifieds here. There are always plenty of them for sale.
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Old 01-20-2018, 08:14 PM   #16
Pablo808
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Quote:
Originally Posted by Mulder View Post
A married Accessport for $450? Hell no, that's about what a properly unmarried one goes for. It costs about $300 to have Cobb unmarry/recertify it so it would end up costing you more than a new one.
If you can get it for $100, then maybe. Otherwise it's not worth the hassle, get a new one from one of our NASIOC vendors or pick up an unmarried used one in the classifieds here. There are always plenty of them for sale.


Okay thanks. Iíll look into the classifieds to see what I can find. Either that or just spend the money for a new one.
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Old 01-20-2018, 09:00 PM   #17
ruhohshaggy
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OEM filter is best
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Old 01-20-2018, 09:05 PM   #18
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Cobb, Don't really know if its worth it tho.
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Old 01-20-2018, 11:55 PM   #19
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Quote:
Originally Posted by Mulder View Post
A married Accessport for $450? Hell no, that's about what a properly unmarried one goes for. It costs about $300 to have Cobb unmarry/recertify it so it would end up costing you more than a new one.
If you can get it for $100, then maybe. Otherwise it's not worth the hassle, get a new one from one of our NASIOC vendors or pick up an unmarried used one in the classifieds here. There are always plenty of them for sale.
If you get it from MAPerformance, they include their own custom map. Just an extra option made it worth it for me, for what it's worth.
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Old 01-21-2018, 02:15 AM   #20
Jersey Man10
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Get the accessport, a catted downpipe, and an axleback exhaust (or catback). Don't worry about the intake.

I had the Cobb for a year and it was fun at first because of the noises but eventually it got old and I ended up having too much heat soke so I sold it.
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Old 01-21-2018, 02:44 AM   #21
jamal
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It cracks me up how insistent some of the people around here are that intakes dont make a difference. There is actually a lot of proof documented with before and after dyno charts.
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Old 01-21-2018, 02:54 AM   #22
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Quote:
Originally Posted by jamal View Post
It cracks me up how insistent some of the people around here are that intakes dont make a difference. There is actually a lot of proof documented with before and after dyno charts.
dyno charts from the people that make money selling intakes. yeah, ill pass.
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Old 01-21-2018, 02:59 AM   #23
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Stock intake + drop in filter. Unless u really want the wooshy, which is nice but I noticed my car feels better with the stock intake compared to MAP intake, probably because of the box
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Old 01-21-2018, 08:35 AM   #24
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GrimmSpeed also makes an intake. Itís on the expensive side, but they make quality products. They claim some impressive gains with the intake. As others have said, who knows if that is true, but GrimmSpeed have a great track record.
http://www.grimmspeed.com/grimmspeed...17-subaru-wrx/
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Old 01-21-2018, 09:43 AM   #25
Charlie-III
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Quote:
Originally Posted by jamal View Post
It cracks me up how insistent some of the people around here are that intakes dont make a difference. There is actually a lot of proof documented with before and after dyno charts.
A stock car with a tune can make more power or gain area under the curve over a stock car with OEM tune.
For the price and need for a tune, an intake on a Subaru is not really worth it until getting into more mods.
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