SET YOUR CAR
Buy Now, Pay Later! Starting at 0% APR
FREE SHIPPING
On orders over $100
TALK TO A PARTS EXPERT
RALLYSPORT GUARANTEE
100% Money Back on Select Parts

GrimmSpeed Boost Control Solenoid

MODEL # GRM 057002

$113.00


  • Q: Grimmspeed 3 port ebc  04BlobEyeSTi3 months ago

    I think my GS ebc solenoid crapped out on me.. if this was to happen and I replace it with the same GS 3 port would I need retune? I've heard it would have the same tune I had since it's the same brand/model boost controller
    • 0 of 1 people found the following answer helpful

      A:  If it is the same exact boost controller and you can set it to the same exact parameters you would not need to retune.

      Devan M. @ RallySport Direct 3 months ago  
        
      Was this answer helpful?
  • Q: Will this work on a JDM Subaru Forester?  hydn798 months ago

    I'm located in Japan. I have a 2006 JDM Forester. The motor isn't 2.5L like the US. It's smaller 2.0 (ej205). Will this work? I was told COBB access port won't work with JDM so curious is this also conflicts with JDM ECU?
    • 0 of 1 people found the following answer helpful

      A:  Unfortunately, we are only able to confirm fitment for USDM vehicles/ECUs. I would recommend checking with your tuner to see what options would work for your FXT.

      Marcus E. @ RallySport Direct 8 months ago  
        
      Was this answer helpful?
  • Q: Safe to use before a tune  Forester XToby10 months ago

    I'm getting my car tuned in a week, I know it's recommended to get the boost solenoid tuned but my question is this. is it safe to install the solenoid and drive around for a week then get the car tuned or would it be better to install it in the car park of the tuning place then get it tuned right away(I really don't want to do that).
    • 0 of 1 people found the following answer helpful

      A:  You would want to install it in the parking lot at your tuner's shop. Driving un-tuned on an aftermarket BCS can cause serious engine damage. However, your tuner may be able to send you a base map for you to flash at home so you can safely drive to their shop.

      Marcus E. @ RallySport Direct 10 months ago  
        
      Was this answer helpful?
  • Q: Fitment  steezytricks1011 year ago

    Ok I have an 06 sti. My buddy gave me his grimspeed ebcs off his 02 wrx. Will this work on my car? I have read the other questions which were similar questions just reversed and you guys said it would work but I would just like to double check and make sure before I try to instal. Thanks
    • 1 of 1 people found the following answer helpful

      A:  They are the same but the one for the STI will have a few extra grommets for the bracket. Other than that, it will work fine.

      Tyler G.
        
      Was this answer helpful?
  • Q: Electronic boost control   Specter 1 year ago

    Is this the same as the Grimm speed 3 post electronic boost controller?
    • 1 of 1 people found the following answer helpful

      A:  This is a 3 port solenoid, if you are seeing multiple options, please make sure you are using the vehicle filter so the correct one for your car is selected.

      Evan M. @ RallySport Direct 1 year ago  
        
      Was this answer helpful?
  • Q: Replacing current plastic 3 port boost solenoid  peteavila1 year ago

    If I replace my current plastic 3 port with GrimmSpeed, will it need to be retuned.
  • Q: Waterproof?  tempemail55c521bfcaae527b2d8b45755 years ago

    Is this unit waterproof similar to cobb's?
    • 0 of 0 people found the following answer helpful

      A:  Yes this is water proof. Both the body and wiring are custom made to our specifications which include waterproof seals. Mike

      GrimmSpeed
        
      Was this answer helpful?
  • Q: Fitment   ozunadel541525 years ago

    when bought my car this solenoid came with the car but not installed. i have a 2003 wrx. i did notice that the part number for 2002-2005 wrx is the same except for the last number. just curious about fitment
    • 0 of 0 people found the following answer helpful

      A:  Hello, These are the same but the one you received will have a couple of extra rubber grommets for the mounting bracket. It will work great! Mike

      GrimmSpeed
        
      Was this answer helpful?
  • Q: Tuning  twmock249625 years ago

    Can I use a V3 Accessport to tune this myself through Accesstuner on my computer? If so what settings do I need to change?
    • 0 of 0 people found the following answer helpful

      A:  Yes you can do the adjustments via AccessPort by using the race tuner software. Changes to be made need to be to your boost targets and WGDC. However beyond that you will need to consult a tuner to perform a tune for you to calibrate those settings.

      Kirill C. @ RallySport Direct 5 years ago  
        
      Was this answer helpful?
  • Q: Maintenance and hook up  KornShaDoW0975 years ago

    I heard these can get clogged. How would they be cleaned? Also, how do you hook this up to a Tial 44mm EWG?
    • 0 of 0 people found the following answer helpful

      A:  You may get oil passing through the valve but it shouldn't get clogged with pressurized air flowing through it. If you think it is getting gummed up you could try some no corrosive degreaser and blow it out with compressed air. We have install instructions for both WG types on our website linked below. http://www.grimmspeed.com/catalog/product_info.php?cPath=151&products_id=145 Mike

      GrimmSpeed
        
      Was this answer helpful?
  • Q: Fittings  KornShaDoW0975 years ago

    What type of fittings are the ones used on this? What sizes, material etc. and where can I get them? Will using larger hoses as required for a larger turbo require larger nozzles and hoses all around to help relieve pressureor when do these lines require an increased diameter?
    • 0 of 0 people found the following answer helpful

      A:  The lines on boost controllers and solenoids are only vacuum lines, they should not require an increased line size and there would be no benefit in it.

      Nick S. @ RallySport Direct 5 years ago  
        
      Was this answer helpful?
  • Q: ?  jakerWRX5 years ago

    My stock bcs broke could I just use this in place of my stock one with out a tune?
    • 0 of 0 people found the following answer helpful

      A:  This part is much more efficient than the stock piece and will require a tune. Mike

      GrimmSpeed
        
      Was this answer helpful?
    • 0 of 0 people found the following answer helpful

      A:  This unit will require a tune to install.

      Nick S. @ RallySport Direct 5 years ago  
        
      Was this answer helpful?
  • Q: Tuning  Tmanjustice495705 years ago

    I realize it requires tuning, but I have a friend that says you can run just 2 ports, leaving one open, without a tune as the set up replicates the 2 port stock solenoid. Is this possible?
    • 0 of 0 people found the following answer helpful

      A:  It is possible to run the car in 2 port but we do not recommend it without a tune. Adding a part as critical as a boost controller should always be tuned for. Mike

      GrimmSpeed
        
      Was this answer helpful?
  • Q: match with OTS AP stage 2?  RexWagon126 years ago

    I plan on picking up an AP soon, and I know that the stage 2 brings the boost levels up, so my question to you guys is this; would the stock BCS be fine or should I purchase an EBCS like this one to allow my car to reach peak boost better/faster? Also should ask if I can even use an OTS map with this or do I need a protune?
    • 0 of 0 people found the following answer helpful

      A:  The Cobb OTS maps are designed to be used with the stock OEM solenoid. If you were to install this boost solenoid we would strongly recommend a custom tune to take full advantage of its potential. Thank you.

      Sterling W. @ RallySport Direct 6 years ago  
        
      Was this answer helpful?
    • 0 of 0 people found the following answer helpful

      A:  In order to run this solenoid you will need a protune. An off the shelf Cobb map will not control this solenoid properly. This unit is much more efficient then OEM and will yield great results with boost control and spool up. Mike

      GrimmSpeed
        
      Was this answer helpful?
  • Q: Increasing boost psi  funkyfresh808599416 years ago

    when installing. do i need an electronic controller? or do i have my tuner tune it for the amnt of boost i want to run? and if i run 5lbs higher boost would i need any fuel upgrades? i have an 06 sti. currently all i have now is a tbe and turbosmart recirc bov.
    • 0 of 0 people found the following answer helpful

      A:  Hello, This is an electronic controller. You will need to bring your car to a tuner for the install and set up of this part. You will be able to run more boost but you will have to talk to your tuner about how much power you can make with your current set up. Mike

      GrimmSpeed
        
      Was this answer helpful?
    • 0 of 0 people found the following answer helpful

      A:  An aftermarket boost controller is not necessary with this solenoid because it uses the stock boost controller. You will need a custom tune with this solenoid and your tuner can set the boost levels during tuning. Your stock turbo and fuel system reach their limits at roughly the same power level and you should not need to upgrade your fuel system while using the stock turbo.

      Zach G. @ RallySport Direct 6 years ago  
        
      Was this answer helpful?
  • Q: Turbo Flutter ?   slc05wrx6 years ago

    Recently after getting my turbo Ported. I got really bad turbo flutter. Peaking at about 17psi then dying off to 14 then shoot back up to 17psi.. Would the Boost Solenoid help with the issue? Thanks.
    • 0 of 0 people found the following answer helpful

      A:  Hello, The solenoid will definitely do a better job of controlling boost. I would consult your tuner and see if this is the right fit for you. Mike

      GrimmSpeed
        
      Was this answer helpful?
    • 0 of 0 people found the following answer helpful

      A:  If you hear a flutter under full boost, a boost control solenoid will more than likely fix the issue. If the flutter happens when you release the throttle, then your BOV is probably adjusted too tight.

      Zach G. @ RallySport Direct 6 years ago  
        
      Was this answer helpful?
  • Q: Can you  Subaru man6 years ago

    can you turn up the boost rite from this solenoid, is it like a boost controller or do it just hold the boost better or both, and if you can turn up the boost rite from it then how?
    • 0 of 0 people found the following answer helpful

      A:  Hello, All control over this solenoid is done with the ECU. In order to control boost you will have a professional tune the car for you. We do sell a manual boost controller that can control boost by the turn of a dial! http://www.rallysportdirect.com/GrimmSpeed-Universal-Manual-Boost-Controller Mike

      GrimmSpeed
        
      Was this answer helpful?
  • Q: restrictor pill combo  KornShaDoW0976 years ago

    Hi, what are the pros/cons of using a restrictor pill with this BCS for high boost application using a VF39?
    • 0 of 0 people found the following answer helpful

      A:  We haven't done testing with this specific set up but all of our tuners recommend NO restrictor pill when using a 3 port boost solenoid. The solenoid it's self will do a great job of controlling boost and does not need a pill to aid it. Mike

      GrimmSpeed
        
      Was this answer helpful?
  • Q: BCS Type  KornShaDoW0976 years ago

    Does this BCS use a stepper motor to control boost? I'm trying to use this with my aquamist system and I wired it as if it was the stock Boost solenoid, so I'm trying to figure out if it will work out. Because I have a check engine light on constantly now acting as if I over booster when I start the car.
    • 0 of 0 people found the following answer helpful

      A:  I think this may be a stepper motor, but not 100% sure on that, maybe someone else can chime in with an answer. And the CEL may be caused by the car not being tuned specifically for this solenoid, as all aftermarket stock replacement solenoids will require a tune.

      Rick C. @ RallySport Direct 5 years ago  
        
      Was this answer helpful?
  • Q: Vacume Lines  Johndom47746 years ago

    Hi there. What lines should be used? Are some winshield washer fluid lines ok for boost vacume lines?
    • 1 of 1 people found the following answer helpful

      A:  This solenoid uses 5/32nd vacuum lines which are included in the kit. Our fittings are interchangeable if would like to run larger lines. I'm not sure if washer fluid lines would be strong enough, i would recommend using what we include with the part or something specifically designed for high pressure. Mike

      GrimmSpeed
        
      Was this answer helpful?
  • Q: pro tune?  jdmcar135327 years ago

    How do you go about a pro tune. And what kinda price tag is attached to that procedure.
    • 0 of 0 people found the following answer helpful

      A:  You will want to look for a tuner that is familiar with Subarus that can offer you a professional tune. Typically you are looking at $400.00 and up depending on how long it takes to tune the car.

      Tanner S. @ RallySport Direct 7 years ago  
        
      Was this answer helpful?
  • Q: vacuum pill  Boxer07wrx7 years ago

    when replacing stock vacuum lines from turbo after the T, do i have to insert that pill into the line connecting the turbo to the ebcs? or is it not needed any longer?
  • Q: Wastegate aid  KornShaDoW0977 years ago

    Will having this aid in resolving underboost without needing to adjust an internal wastegate (spring or initial pressure) since it redirects boost pressure seen by the Wastegate? Or will I still need to adjust these things to accompdate higher boost levels?
    • 0 of 0 people found the following answer helpful

      A:  Hello, You wont have to adjust the physical wastegate in order to run this but you will have to change your wastegate tables in your ecu. We recommend consulting with a professional tuner for this type of work. Mike

      GrimmSpeed
        
      Was this answer helpful?
  • Q: Boost Creep  KornShaDoW0977 years ago

    Does having this and a proper tune, eliminate boost creep with turbos equipped with an internal actuator?
    • 0 of 0 people found the following answer helpful

      A:  Boost creep is mostly an issue with waste gate itself not being able to get the exhaust gasses out the turbo fast enough. The best solution for wastegate creep is porting of the wastegate area or external wastegate setup. Taras

      GrimmSpeed
        
      Was this answer helpful?
    • 0 of 0 people found the following answer helpful

      A:  Yes, investing in this boost solenoid as well as a proper tune will alleviate most boost creep issues. Thank you.

      Sterling W. @ RallySport Direct 7 years ago  
        
      Was this answer helpful?
  • Q: Cobb AP  DannyD3037 years ago

    If I install this on my 04 WRX and get my car re-tuned will my Access Port become useless or dangerous to use or will it adjust automatically to the new tune if I uninstall it from my ECU and re-install after the tune?
    • 0 of 0 people found the following answer helpful

      A:  Access Port is a flashing device. So when you get your car tuned the map is saved on both the ECU and AP. If you ask your tuner about the tuning and flashing process the tuner will be able to explain the process in detail to you. Taras

      GrimmSpeed
        
      Was this answer helpful?
    • 0 of 0 people found the following answer helpful

      A:  Taras did a great job of answering this, but I would like to add that you can get a Protune, or a custom tune on your AccessPort. You would be able to switch between custom maps, just like you already can with the preloaded maps. Either way, you need a custom tune with an aftermarket electronic boost control solenoid.

      Zach G. @ RallySport Direct 7 years ago  
        
      Was this answer helpful?
  • Q: safety   KornShaDoW0977 years ago

    If a vacuum line ruptures is it safer, the same or higher risk than the stock BCS? I mean the stock boost restriction pills and BCS supposedly aid safety (which I still dont see how they would help if a line ruptured) Would overrun be any more of a problem or would it be the same regardless? Anyway around this?
    • 1 of 1 people found the following answer helpful

      A:  It would be the same regardless if a line ruptured (I've never seen this actually happen to anyone). If that happened and you were to overboost your ECU would notice this and typically will throw a check engine light on so you are aware of the situation besides that the car would definitely be running alot worse.

      Tanner S. @ RallySport Direct 7 years ago  
        
      Was this answer helpful?
  • Q: HOA vs. GS BCS  ctom247 years ago

    Are there any major differences between this BCS and the HOA BCS?? Can anyone speak on this?
    • 0 of 0 people found the following answer helpful

      A:  We could go on all day about how ours is better but here are a few quick points from our friendly engineers. Our valve can sustain faster energizing and deenergizing, facilitating faster cycling and smoother boost control. Our valve is also balanced, which the HOA (pierburg) is not. This means that the force to cycle the valve is the same, regardless of the amount of boost that you're running. Our valve also uses seals that are manufactured in such a way that the parting lines aren't on the sealing surface of the o-ring, providing a better, more robust seal. Mike

      GrimmSpeed
        
      Was this answer helpful?
    • 0 of 0 people found the following answer helpful

      A:  There are definitely some major differences between the solenoids. We can't go into much detail here because this isn't an open forum but here are a few key points. Our valve can sustain faster energizing and deenergizing, facilitating faster cycling and smoother boost control. Our valve is also balanced, while others are not. This means that the force to cycle the valve is the same, regardless of the amount of boost that you're running. Our valve also uses seals that are manufactured in such a way that the parting lines aren't on the sealing surface of the o-ring, providing a better, more robust seal. Mike

      GrimmSpeed
        
      Was this answer helpful?
  • Q: Tune  tyloryantis7 years ago

    I have a Cobb ap do they have a tune for this or does it have to be a protune only thing
    • 0 of 0 people found the following answer helpful

      A:  There are no off the shelf maps for aftermarket boost solenoids available from Cobb so you would indeed need a professional tune to have the cars computer calibrated properly for the new solenoid.

      Tanner S. @ RallySport Direct 7 years ago  
        
      Was this answer helpful?
  • Q: Over boost danger  808STi067 years ago

    If I'm running a Cobb Stage 2 OTS tune, would I be able to safely drive my car from my house to the tuners shop with this boost control solenoid and a larger turbo (If I drove lightly and kept to the lower rpm range)?
  • Q: Accessport  Brownie1-27 years ago

    So will this be ok to run with the Cobb ots maps?
    • 0 of 0 people found the following answer helpful

      A:  You will need a Protune when running the Cobb Accessport if you install our solenoid. If you are not using a Cobb AP a tune of some sort is required. Not tuning after the installation of any 3-port solenoid will cause the car to overboost. Will

        
      Was this answer helpful?