Hey I have the same question but for the 2010 2.5i impreza. Can you modify the intake at all, and would it need a tune? Without a standalone ecu or piggyback?
Great vide thanks for the info. Just bought a 2006 WRX ! car is running like shit from 2 to 3k rpm and shaking and very bad accelaration. Muy Subaru guy said first things first ... Before even looking at your tune to see what it is, revert this back to normal airbox as it just makes more sound and to be honest I think it is a more HOT AIR intake after running OBD check with my friend as the intake temps were much higher than normal baseline. Luckily found used full set and I am waiting for the used parts which I purchase to arrive and we shall see.. K&N Typhoon is the intake btw
Had my FA20 turbo WRX tuned with basic bolt-ons. We found that changing out the factory airbox to cold air intake didn't really yield any noticeable power increases. I ran with the Process West CAI for about 6 months, but I found the intake sound became tiresome. I put the stock air box back on, had it re-tuned, and the power output was virtually unchanged. Same with the catback exhaust actually. The main components that impacted the tune (in terms of making power) were the intercooler and the J pipe/high flow cat. Over 200kw, there could be more power to be made using an aftermarket intake systems. But under that, I think its mostly for noise and looks.
Talking power...Yes, I totally agree with you. But one major difference I've noticed is throttle response. Coming on and off the throttle is more responsive/aggressive with an aftermarket intake.
@@Silent_ShadowTHIS! I noticed that soon as I put a stock one on. It makes sense because it's a longer distance and smaller diameter with the stock intake, thought I do predict the power delivery will be smoother
Why don't you just take out the T fitting and replace it with hose . And by the 2 port solenoid put a Y fitting to fit the 2 hoses . Itll flow much better
G'day guys , 2021 wrx sti , I have spent the last 3 months researching on how I want to go about upping the power , was looking at the iag complete engine builds , cosworth , deshele and the list goes on , I have around 25k to spend and was wondering what kind of whp I could get and what road I could go down to achieve that , once this build is finished I'm going to sit on it for a couple of years and eventually I want to build a 800 whp beast with a sequential gear box , I am not far from Ballarat so you guys aren't far away.... your help would be greatly appreciated
i put one on mine without a tune, and only thing i noticed was my turbos wastegate had a ticking noise at low rpm because the vaccuum pressures were off, which is why the tuner will tune the 3 port to command the vaccum for the specific boost levels desired
Same here, a year+ later wanting to know if I can leave that pipe to atmosphere or if I need to go fab alternative intake piping, after the maf is the most I know...
Very good information , but I think the stock box works just as well as any other. Main thing is not just getting in cooler air but cleaner as well and with the stock box a good aftermarket filter intake pipe to the turbo changed will do .Once the intake hole to the box is not located in a area that it in pulling in heat good point to the box it is already located at a point where no major heat source is produced. Just my point of view cause I run it with no heat pull problems only if we have a heat wave in the UK .
I agree, the values show a difference yes but more importantly are they statistically significantly different between stock air box and cai? I betcha there is no statistical difference
Great vid. Would this help the FA motors were Boost cuts out at about 5k?? Could by having one of these and a tune we could make the boost continue on for a bit longer? Or will that be just bad for the engine
Somebody please help!! Lol do I need a tube connected to the air cleaner element on my 99 Subaru Impreza outback sport 2.2 l? Because at first I thought my air element cleaner was missing, but it's not. The black part to the left of the air cleaner, where the tube should be connected to it with the black box. Well, that is missing, and I swear ever since that has not been there my car has been acting funny. but the dealership where I bought the car at said it's not necessary to have and it should not mess up. However, some kid told me that these cars have two filters inside of the, not the oil filter but it has to do with the air element. And I'm trying to Google it and find out the name of that tube that connects to the air cleaner element but I cannot find it. Any help would be much appreciated. Thank you in advance for your time and consideration. That tube piece that he shows! Is that necessary to have? And what does it connect to
It sounds like youre discribing a resonator, its usually a bit of pipework designed to stop the engines intake becoming loud at certian rpm, it isnt hugely important to the cars functioning though.
I have a 2019 WRX STI and I have a cold air intake injen and I also have a Cobb 3 inch catback exhaust with a Cobb downpipe catted with a process West top mount and a go-fast bits blow off valve with an accessport stage 293 and I haven't had any problems the injen cold air intake is the first intake that does not require a tune
trying to figure this out for my 06 legacy wago, fuel filter was never changed in 188k miles and she is cutting out on me, all other suspected culprits have been ruled out.
@@TheLesliemrx7 that makes sense to me but I have found 2 diagrams saying it goes in the tube to the air intake box.. I will try both ways tomorrow. Thanks for the reply
I can confirm that they split. MY06 forester split the oem filter holder 300km away from home while the whole family was in the car on the way to a snow trip.
@@ferretfrenzy05 I am looking to have it tuned back to OEM all I have is a full Cat-Back exhaust... Never done it so I have no idea where or what shop does SC
@@r.seaboats6666 Do you have any other mods except for the catback? If it just the catback then you wouldn't need a tune for that unless they changed the stock maps for some marginal performance / economy gain.
The grimmspeed MBC has only 2 nipples. From from turbo boost source and one out to wastegate nipple. What happens to the the intake venting? There is no 3rd nipple non MBC and the instructions just said to cap off the intake nipple on the MAF. So is this poor design not to vent to intake? I'm experiencing throttle cut with stock psi car is def more responsive with faster tune but at full throttle sometimes it stutters or cuts power (assuming fuel cut).
The Turbosmart boost constoller (manual in cabin) Works like 3 port ? in TEE have a spring and Ball to block the hole conect to turbo. Its correct? The MBC manual is better that 2 port stock EOM system? on subaru impreza
great vid man. thanks. i was considering just getting an up pipe and not bothering with the intake but this vid changed my mind. Ill probably get both. you should try doing the same test with the stock intake with a performance panel filter.
Hmm, I don't see much difference between the 2-port and the 3-port. I understand that the positive boost pressure passes through the 3-port before it reaches the wastegate actuator, but with the 2 port, if you create a weak point in the system for the air to be relieved, it excess/more pressure won't be able to build up anyways.
Except that if a turbo is running 8psi and you have that 2 port tee open to free air it can still only make about 12psi. ie the tee cant bleed off ENOUGH air. Also a 3 port can stop ALL air getting to the wastegate until a boost target is achieved to decrease spool time
Hey I have the same question but for the 2010 2.5i impreza. Can you modify the intake at all, and would it need a tune? Without a standalone ecu or piggyback?
Great vide thanks for the info. Just bought a 2006 WRX ! car is running like shit from 2 to 3k rpm and shaking and very bad accelaration. Muy Subaru guy said first things first ... Before even looking at your tune to see what it is, revert this back to normal airbox as it just makes more sound and to be honest I think it is a more HOT AIR intake after running OBD check with my friend as the intake temps were much higher than normal baseline. Luckily found used full set and I am waiting for the used parts which I purchase to arrive and we shall see.. K&N Typhoon is the intake btw
I fell asleep 12 times watching this
Hi sorry old post .. afre these 3 port pieburg boost solenoids you using as good the mac 3 port ones ? I like to use this one as its much cheaper
This is the best data analysis ive ever seen on STI, cheers
The second that, great video
Had my FA20 turbo WRX tuned with basic bolt-ons. We found that changing out the factory airbox to cold air intake didn't really yield any noticeable power increases. I ran with the Process West CAI for about 6 months, but I found the intake sound became tiresome. I put the stock air box back on, had it re-tuned, and the power output was virtually unchanged. Same with the catback exhaust actually. The main components that impacted the tune (in terms of making power) were the intercooler and the J pipe/high flow cat. Over 200kw, there could be more power to be made using an aftermarket intake systems. But under that, I think its mostly for noise and looks.
Talking power...Yes, I totally agree with you. But one major difference I've noticed is throttle response. Coming on and off the throttle is more responsive/aggressive with an aftermarket intake.
@@Silent_ShadowTHIS! I noticed that soon as I put a stock one on. It makes sense because it's a longer distance and smaller diameter with the stock intake, thought I do predict the power delivery will be smoother
Do you think a 3 port could help with boost creep on a vf48?
Why does it need to vent to the inlet? I need to get a 3 port for my evo 3.
Excellent information video. Thanks.
Why don't you just take out the T fitting and replace it with hose . And by the 2 port solenoid put a Y fitting to fit the 2 hoses . Itll flow much better
G'day guys , 2021 wrx sti , I have spent the last 3 months researching on how I want to go about upping the power , was looking at the iag complete engine builds , cosworth , deshele and the list goes on , I have around 25k to spend and was wondering what kind of whp I could get and what road I could go down to achieve that , once this build is finished I'm going to sit on it for a couple of years and eventually I want to build a 800 whp beast with a sequential gear box , I am not far from Ballarat so you guys aren't far away.... your help would be greatly appreciated
Did you ever do a build? I'm curious what you chose to do.
Wondering why cant you put a 3port with out a tune and what are the Concequence if you do put one without tuning what will happen and why cheers
i put one on mine without a tune, and only thing i noticed was my turbos wastegate had a ticking noise at low rpm because the vaccuum pressures were off, which is why the tuner will tune the 3 port to command the vaccum for the specific boost levels desired
Cheers for dropping the knowledge. Am just about to get mine remapped and was wondering if I needed one. I do!
Waiting and waiting and waiting to hear what the second pipe does. Why was this not explained ??!
Same here, a year+ later wanting to know if I can leave that pipe to atmosphere or if I need to go fab alternative intake piping, after the maf is the most I know...
Amazing explanation. Bravo sir
Very good information , but I think the stock box works just as well as any other. Main thing is not just getting in cooler air but cleaner as well and with the stock box a good aftermarket filter intake pipe to the turbo changed will do .Once the intake hole to the box is not located in a area that it in pulling in heat good point to the box it is already located at a point where no major heat source is produced. Just my point of view cause I run it with no heat pull problems only if we have a heat wave in the UK .
I agree, the values show a difference yes but more importantly are they statistically significantly different between stock air box and cai? I betcha there is no statistical difference
Hi thanx have MY99 GC8 WRX do you have any tuners in QLD or SYD ?
Great vid. Would this help the FA motors were Boost cuts out at about 5k?? Could by having one of these and a tune we could make the boost continue on for a bit longer? Or will that be just bad for the engine
Great video and simple explanation. Thank you!
What is better. A good MBC like grimspeed , or 3 Port solenoid?
What's about air temp?
Hey, is it possible to run a dual manual boost controller with a 3 port solenoid?
I apologize what is that tube called?
Somebody please help!! Lol do I need a tube connected to the air cleaner element on my 99 Subaru Impreza outback sport 2.2 l? Because at first I thought my air element cleaner was missing, but it's not. The black part to the left of the air cleaner, where the tube should be connected to it with the black box. Well, that is missing, and I swear ever since that has not been there my car has been acting funny. but the dealership where I bought the car at said it's not necessary to have and it should not mess up. However, some kid told me that these cars have two filters inside of the, not the oil filter but it has to do with the air element. And I'm trying to Google it and find out the name of that tube that connects to the air cleaner element but I cannot find it. Any help would be much appreciated. Thank you in advance for your time and consideration. That tube piece that he shows! Is that necessary to have? And what does it connect to
It sounds like youre discribing a resonator, its usually a bit of pipework designed to stop the engines intake becoming loud at certian rpm, it isnt hugely important to the cars functioning though.
@@wefwefwef. ok, thank you for responding, I really appreciate it.
Thank you Sir. Now I understand👍
I've got an issue my check engine light came on and it says I have too much air how should I fix this?
You need more fuel ..
Go back to stock
can i combat this using a fpr and a wide band sensor instead of a tune though?
I believe that is possible. Not 100 percent sure
Yes you definitely can
I have a 2019 WRX STI and I have a cold air intake injen and I also have a Cobb 3 inch catback exhaust with a Cobb downpipe catted with a process West top mount and a go-fast bits blow off valve with an accessport stage 293 and I haven't had any problems the injen cold air intake is the first intake that does not require a tune
trying to figure this out for my 06 legacy wago, fuel filter was never changed in 188k miles and she is cutting out on me, all other suspected culprits have been ruled out.
How can I bypass this solenoid to run a electric boost controller ??? 2012 Mercedes C250
Do you think makes a difference when installing on a naturally aspirated Subaru motor? Such as the newer 2.0i motors??
Don't bother with a NA Subaru just leave it stock.
Hi with the 3 port solenoid where would the boost pill go?
i have spent 2 days online but cant find one straight answer. Nightmare hey!
@@paulemmott1263 I found it so the boost pill is placed 5" from the compresser housing that's for the 3 port
@@TheLesliemrx7 that makes sense to me but I have found 2 diagrams saying it goes in the tube to the air intake box.. I will try both ways tomorrow. Thanks for the reply
Your actually supposed to take it right out, then get it tuned. its not supposed to be in the 3 port ebcs
I can confirm that they split. MY06 forester split the oem filter holder 300km away from home while the whole family was in the car on the way to a snow trip.
What if your car was tuned and you simply go back to the first way you had it is that okay to drive or you have to tune it back 2 OEM?
Tune it back to the OEM maps
@@ferretfrenzy05 I am looking to have it tuned back to OEM all I have is a full Cat-Back exhaust... Never done it so I have no idea where or what shop does SC
@@r.seaboats6666 Do you have any other mods except for the catback? If it just the catback then you wouldn't need a tune for that unless they changed the stock maps for some marginal performance / economy gain.
Nice video thank u learnt a lot
What year and model is that factory filter box off of? 2.0 or 2.5? Thanks!
His application there says 2011 WRX, so 2.0
2011 rex is a 2.5
Great video, do you think its worth changing the intake on a mildly modified 2012 WRX, ie are they really any good gains to be had?
Very good explanation thank you! Got one for my 04 wrx. Tuner requested I get one for my next tune and I got the grimmspeed three port.
The grimmspeed MBC has only 2 nipples. From from turbo boost source and one out to wastegate nipple. What happens to the the intake venting? There is no 3rd nipple non MBC and the instructions just said to cap off the intake nipple on the MAF. So is this poor design not to vent to intake? I'm experiencing throttle cut with stock psi car is def more responsive with faster tune but at full throttle sometimes it stutters or cuts power (assuming fuel cut).
The Turbosmart boost constoller (manual in cabin) Works like 3 port ? in TEE have a spring and Ball to block the hole conect to turbo. Its correct? The MBC manual is better that 2 port stock EOM system? on subaru impreza
great vid man. thanks. i was considering just getting an up pipe and not bothering with the intake but this vid changed my mind. Ill probably get both. you should try doing the same test with the stock intake with a performance panel filter.
Hmm, I don't see much difference between the 2-port and the 3-port. I understand that the positive boost pressure passes through the 3-port before it reaches the wastegate actuator, but with the 2 port, if you create a weak point in the system for the air to be relieved, it excess/more pressure won't be able to build up anyways.
Except that if a turbo is running 8psi and you have that 2 port tee open to free air it can still only make about 12psi. ie the tee cant bleed off ENOUGH air. Also a 3 port can stop ALL air getting to the wastegate until a boost target is achieved to decrease spool time