GrimmSpeed BPV Honest Review | 2018 Subaru WRX
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- Опубликовано: 23 июн 2022
- As promised, here is my in-depth and honest review on the newly released GrimmSpeed BPV for my 2018 Subaru WRX! Be sure to check out the sound clips of the BPVs mentioned. Links to the videos below.
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Relevant Links:
►GrimmSpeed BPV Sound Clips: • GrimmSpeed BPV SOUNDS!...
►Nameless Performance BPV Sound Clips: • GrimmSpeed Turbo Inlet...
►GFB Hybrid BOV - Subaru Legacy GT: • The POPS are TOO LOUD!...
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#Grimmspeed #BPV #Review #Namelessperformance 
Авто/Мото
Ron's greatest fear, those quick jacks falling off the wall XD
Great video as always Ron, keep us posted on what Grimmspeed says about that issue. I know your heart dropped when it shut off! Hate that feeling, glad to hear it wasn't catastrophic tho.
Thank you 🙏. Yeah, it’s always an uneasy feeling when it happens! I’ll be sure to keep everyone posted on everything.
Wait what happened ???
Good stuff man. If I was going off sound alone I personally like the GS sound better than the Nameless, but that is just me. I'm still on the the OEM one soooooo stealth mode at this point lol.
Also, great job on the editing man, just getting better and better.
Thanks for noticing man! I do think the GS sounds better. Hoping I fix the issues soon.
Great video big dawg!
Thank you man 🙏
I got the GFB Mach 2 full recirc.
No sounds, very very subtle.
Very well made and adjustàble spring tension so you can dial it in for better throttle response.
Holds boost fantastic.
Performance wise I think it's the best.
GFB has a lot of experience making BOVs for many platforms.
Also it's cheap.
I recommend it.
Side note I'm not sure some of those sounds from the Grimmspeed BOV aren't compressor surge from too stiff of a spring. I think you could run the GFB one with a very tight spring setting and get those noises if you wanted. Not sure it's ideal for performance. Just my opinion.
Love the vids!
Thanks for checking out the video man! I will look into GFB for the WRX. Highly doubt it’s compressor surge which is good!
Nice review! I had the GrimmSpeed BPV on my car, and had similar issues. AFRs would go really rich in-between shifts, and if you built a little boost and clutched in for a few seconds the RPMs would drop and the car would shut off. GS was kind enough to replace it, but the issue was still there. This was back in April.
Unfortunate that the issue continues to persist, this BPV sounds amazing! Thanks for letting me know. I posted an update video after receiving rebuilt BPV from GS ruclips.net/video/oMVnACnadYs/видео.html
This is a great video. What color is that?
Another great vid man. Hope the issue is only minor with the BPV.
Thank you man! Will keep everyone posted!
Sweet
I have a 19 wRX with the Cobb intake and GS bypass valve and I always get the Pssssssss noise. How are you getting the stttsstts noise just curios bc we have the same mods? Could it be the charge pipe and top mount making the noise?
I am not sure what exactly was wrong but I had to install the BPV and turbo inlet twice as I was not getting correct boost the first time. I took it all apart and trimmed the silcone hose a bit more on the BPV and cleaned up all the o-rings with a light amount of WD40 on a shop towel and triple checked all the connections and it is working as it is supposed to. I am still a bit disspointed that I hear zero sounds or flutter with the GrimmSpeed BPV with my stock intake though. I may have to try the "dry-con" air filter to see if that allows me to hear it more. Darn "green speed" from Cobb. :/
Glad you were able to fix it, regardless of the lack of sounds! When you say trimmed the silicone hose, are you referring to the coupler connecting from the BPV to the turbo inlet?
Great comparison video, you mentioned an AF ratio elevation- what numbers were you getting for your AF learn and AF correction?
Thank you! Right now, -20 ~ -25 for AF Learning and -25 ~ -30 for AF Correction. Both are the actual ratios, not the min/max.
Intriguing, I get for AF Learning -9/0.78 and AF correction -25/12.50. Wonder if I should put the stock one back on based from the AF Correction
@@candid-bandit if it’s running fine, I wouldn’t worry about it tbh. Those numbers are solid.
The boomba bypass valve sounds very similar to the grimspeed you have, that is the one I run.
After listening to it, I agree!
Would you recommend buying this bypass valve?
3 month update on the bov air leak ?
I was considering getting this BPV and turbo-inlet but if it will potentially harm my car with similiar issues that you were having than I'll just stick with trusty OEM.
I don’t blame you. The turbo inlet is solid though 👍
I’m new to the whole mod scene but I just recently got a GS intake but I’m also looking into getting a BPV do you recommend I stick with GS or would there be any sorts of issue if I ran a Cobb BPV along with the GS intake?
I’ve heard nothing but good things about the Cobb BPV. Either or should be fine in my opinion. I would have kept the GS BPV on if it didn’t cause my car to shut off.
Use some blue loctite on the threads or Teflon tape, connecting back to the intake
It’s currently still with Grimmspeed but I will give this a shot if it continues to act up once I get it back. Thank you!
If you've heard about the boomba BPV, would you say this gets a better flutter sound than that?
They sound pretty similar, at least from the videos I’ve seen. GrimmSpeed’s BPV seems to get higher pitched flutters whereas the boomba is lower. All personal preference but the this one flutters a lot!
So it looks like you are not the only one with the 'leaking' problem on the bpv where it connects to the inlet. I have mine and tested it out by blowing air into it and it does leak. Some have said to use Teflon tape to seal the threads and it'll work perfectly. What has GS said about it and what are your thoughts?
Just for extra I am getting dyno-tuned next month. Should I send mine back to GS? Or should I buy the Cobb?
Yep, it seems like it’s becoming a common thing. I didn’t bother putting Teflon tape on it since the product should have been in full working order right out of the box, from a reputable brand. I do understand that GS had to get hundreds of these fulfilled ASAP due to back orders so I wouldn’t be surprised if a few didn’t get the proper qc testing. Grimmspeed offered to inspect/warranty the product for me which I’m thankful for.
I’m giving Grimmspeed the chance to fix any related issues with the BPV, I owe them that much since they are a great company and have treated me well throughout the years. I’m hoping that they can prevent this issue in future renditions of the BPV. If you can ensure that you’ll get the BPV back before your dyno date, I would totally send it back for inspection/warranty since it’s a solid product overall. If not, I’d look into other options. Just my honest opinion.
@@ronfromportland I do get the aspect that they have hundreds of orders and trying to get them out ASAP because a lot of people be complaining that everything is backordered and takes weeks to months to get them shipped out.
I also get that yes there will be problems with the new product when you are trying to mass produce them to meet demand and in that process there will be faults that can be overlooked. I will contact GS tomorrow to see if they can get my bpv back before my tune, which will be July 20th, so I think I would have enough time. I will see what happens. I would like to keep it so I have have a full GS setup on the turbo (inlet which is back ordered, bpv, and ebcs). Sadly I wont get the inlet before my tuning date.
@@TheCluelessYT BPVs don’t require to be tuned for so if all else fails you should be fine with the OEM one. Hoping it goes well!
So I installed this on my WRX and am noticing a bunch more exhaust popping, then the same thing happened to me. Car just died mid drive after a shift. Restarted no issues, not seeing anything weird on AFR learning/correction. Did GS ever get back to you on this?
Literally the same exact symptoms as mine. Grimmspeed couldn’t find any immediate issues but they rebuilt the BPV and sent it back within a couple of days. I’m delaying the install as the car is running so perfectly right now.
@@ronfromportlandI have the same bypass valve either improperly installed this or maybe not but my turbo cold side ended up blowing up. Never had white smoke or it never stalled on me either.
@@davidl6354 ruclips.net/video/_Zm8GN-1_jY/видео.htmlsi=IiigjFPuzB7ZaDd4
I just got 2018 WRX. Have intake and fatback exhaust. What should I do next for better sound and pops( not a street racer honestly just want sound) BPV needs other mods to go w it?
What I had was: BPV, Grimmspeed Turbo inlet, and intake. That should be enough to get the sounds you are wanting!
Do you get the flutter sound when running a stock intake with the GS BPV
I can’t confirm since I have an aftermarket intake but I would assume yes since that seems to be the sound the GS BPV produces.
I’m not even going to bother with an upgraded bypass valve, down here in SoCal if they pop your hood and see it, it’s an automatic state ref. Of course if it functions like factory they will sign it off, but you have to pay for the inspection, and can’t drive until inspection.
The BPV sits under the car for stock location. Can't see it looking in the hood or even under the car with your guards
Flutters sounds just like my old focus st w/intake.
They do sound similar!
The flutter is pretty loud huh ? Or did you put a mic in the engine ?
It’s pretty loud. I didn’t put a mic in the engine to try and capture how it really sounds from the cabin.
I’m running a boomba on my wrx sounds just like the grimspeed
Good to know! I do hear the similarities between the two.
Hi how is your boomba bpv holding up i just installed mine
Mine doesn’t really go pshhhh.. it’s silent, I just installed it.. can it be cause it’s new?
Depends on what other mods you have. An intake really helps. The sound doesn’t really change over time.
Kind of wish mine sounded like that on my Sti
How different does it sound on the STi?
@@ronfromportland maybe it’s me but sounds different when inside my Sti. Not to be funny but sounds like a plastic bag moving under the car. But if i record it sounds different. Hard to explain. Contacted Grimspeed and they said it’ll sound different then on their videos since their car is pushing more boost since it has a lot of work done. I think i have a video on my phone but of coarse i can’t send it on RUclips
@@ezimm81 interesting. I kind of have an idea of what it sounds like, kind of like an “empty”, synthetic release is what I’m imagining.
@@ronfromportland just weird maybe it’s just me. If i can send a video i would lol
what do you have your launch control at?
Usually 5200 but I rarely launch it.
Can you put these on cvt automatic transmission?
Yes, it shouldn’t make a difference if it was CVT vs manual.
Literally ordered one 10 min before I saw this video, all I have is a tomei catback, should I cancel the order due poor performance?
I would at least give it a shot. If it doesn’t work out then GrimmSpeed will work with you to get you sorted out. That’s just what I would do though.
@@ronfromportland I'll likely just Teflon the threads to help it out also thanks for the speedy reply quickdraw McGraw lol
@@ronfromportland also did grimmspeed sort out the bpv? Is it working correctly now?
@@Nutralyzed I have no doubt they would have but I just got tired of installing/removing it. The car was running fine with my other BPV so I left it as-is. ruclips.net/video/oMVnACnadYs/видео.html
@@Nutralyzed I will eventually do this!
What exhaust/intake do you have?
Grimmspeed catted downpipe, Perrin resonated catback, and Cobb intake
Jpipe *
I'm assuming these require a tune?
I didn’t get retuned but it’s most likely recommended.
Are you interested in selling the nameless bpv?
I was at first but I think I’m gonna hold onto it for now until I figure out my issues.
What oil filter is that?
OEM Subaru filter with a Perrin prototype oil filter cover ruclips.net/video/rQ7ksYREAaw/видео.html
is this the grimmspeed V2 bpv?
V1 BPV
Can you run a bpv without tune?
Yes, tune is not required
What about grimspeed charge pipe intercooler and bpv. All grimsspeed! But no sound unless I install a intake. I'm on stock tune rn
@@lawrence_lee. you technically don’t need a tune for those parts but there’s nothing to be gained without one.
@@lawrence_lee. you need a tune on anything that alters air or fuel.
Gold or bronze wheels? I'm color blinded thanks man
@@ronfromportland Holy smokes your from the PNW so am I. What a coincidence! I just bought a 2022 wrx and can't decide what wheels I want to get?
@@ronfromportland It's between the Methods and sparco terra
@@Oldschool503 small world. Congrats on the new car! Can never go wrong with bronze or gold wheels in my opinion.
@@ronfromportland Thanks man, cheers
Motor shutting off intermittently can’t be a good thing. Definitely not safe for you or the car. Hopefully everything works out though.
It's due to an issue with the GS BPV.
My grim doesnt flutter for sum reason
My greatest fear. Might go hks
@@jojonokimyonabouken7615go Boomba + intake and you'll have your flutter no issues
"flutter" is not a good thing.
Your referring to Compression Surge right? Compression Surge over time does wear the turbo overtime (depending on driving), but with Grimmspeed the flutter doesn't come from the Turbo, it comes from the BPV. Therefore no wear on turbo. Someone with more knowledge can correct me if I'm wrong, but from what I've researched it's completely safe. 🙏
I have the same set up as you -the intake. I have a aem one. It doesn’t seem to flutter is there a reason for that?