Euro Diverter Valves and DV+ Explained [GO FAST BRETT]

In this episode Brett talks euro diverter valves like you may find in a VW, AUDI or other euro turbo car. When he discovered that the diaphragm in his factory Golf GTI Diverter Valve was torn he developed something to replace it...
In this brand new series created by Mighty Car Mods, Go Fast Brett explains all things turbo, blow off valve and choo choo.
This series is proudly brought to you by Mighty Car Mods and GFB
www.gfb.com.au
www.mightycarm...

[@NoSkates]

I always enjoy how passionate Brett is about this stuff. I want to find a job like that.

[@mituc]

Great video as always, but are you trying to hypnotize us or just make us dizzy with those fast close-ups and camera angle changes?

[@nauthizzz]

Seemed more like it was the best edit for a bad situation. The bits and pieces are small, and Bret kept "talking with his hands" while holding them so it looks like it was difficult to get and keep a close enough shot of the components so you could see what he was talking about as he waved them about. Plus the "script" transitioned very quickly between hands on demo segments which are best suited to a close up, and general information that is best served by the medium shot. Not insurmountable problems, but maybe not worth whatever considerations are necessary to re-shoot it with everyone's schedules and such.

[@douglasdtlltd]

close up shots move way too much; or use a wider lense or zoom out.

[@joop1987]

The constant changing camera angles made me dizzy.

[@jonnyroy]

Why do you zoom in on his hands when he can't keep his hands still for two seconds? I'm getting motion sickness here.

[@Audische]

Camera man needs some serious lessons in filming

[@ratgreen]

Would help if brett kept his hands a little more steady when demoing the product. Great product tho. I dont even need one and I'm sold.

[@sniperer72]

Don't listen to them Brett, you're perfect the way you are.

[@Audische]

i am not talking about Brett

[@sniperer72]

Craig Tripney I was replying to ratgreens comment about how brett doesn't keep his hands steady.

[@datsuntoyy]

Ever seen Aussie shows like Rescue Special Ops. In and out and camera shaking seems to be the norm over there. And yes, it's annoying as hell!

[@TheIrishPhantom]

I had this exact valve on my Abarth. It improved driveability a ton. The factory valve was exactly like the VW one... plastic garbage.

[@Al3xisAE]

Butt Beware - I guess yours is not a uk abarth, I was told the uk one is slightly different

[@TheIrishPhantom]

Rb5vega Yep, they're different. North America uses the Multiar engine.

[@Al3xisAE]

Butt Beware.......lucky

[@Scudw0rth]

Have this on my mk6 GTI. After going Stage 2 I had a horrible whine when WOT and losing boost. Did some research and found the DV could be the culprit. Got a GFB DV+ and it solved all my problems. Holds boost like a champ! Thanks for the fantastic products GFB!

[@GavinTranter]

got the exact valve in my MK5 GTI edition30 and I love it :)

[@FullmetalC5]

I just ordered a DV+ for my 2014 Volvo S60. I've heard it helps hold boost into the higher RPMs as well. Kind of solving the issue of the car feeling like it falls flat in the high RPM range.

[@sbyderqld]

please keep your hands steady when filming close ups.

[@Bretts_Builds]

But what if I don't wanna go fast?

[@mattyb120]

said no one ever......

[@MrClarkisgod]

Buy a Kia

[@themaconeau]

May your pistons be hard and your boost pressure make you go faster? :D

[@courbemusic64]

Awesome video. Was just looking for information on this the other day. Thank you Brett and MCM!

[@madera0502]

It is a great feeling when you know that something you designed is bringing a lot of people joy. Keep up the most excellent work.

[@bengtholmberg8590]

Installed mine today on my Volkswagen, as the final mod (atleast for this year 😁). Sure. A bit tricky to install. But it works super! Runs with no problems what so ever! Thank you for a good product! Regards from Sweden!

[@xavierbachop3235]

does it give a louder blow off sound

[@Tool0GT92]

Wait wait wait....VW has reliability issues?

[@bt7482]

The editing is making me sick. I feel like I'm watching a live feed and the guy at the controls is freaking out trying to keep up with the talent.

[@wrx-9rr701]

Thanks for your explanation Brett. I am using a GFB Respons in my 05 Impreza and it is a work of art. Love your way of approaching problems which happened to yourself. Keep it up!

[@EmbraceMaking]

Good timing for this video, you may have another customer soon. My 08 GTI keeps throwing codes related to the DV

[@MrGuvEuroman]

These are life changing, my car was as flat as the outback and didn't even realise it! Would highly recommend! I've not put my assister spring in yet, but I will when I can get my scan tool.

[@parptarf]

Such a genius little device. Gonna put one on my MK5 GT.

[@randygrindle5121]

Hey my diverter balve is stuck how can i buy your product

[@ShieldAgent75]

I have a Peugeot 207GTi, the factory diverter had disintegrated so I replaced it with your GFB DV+, it was quick and easy to install and works perfectly! Cheers.

[@TriuneSelf4444]

************************** THE GREED OF MEN **************************** Why the hell does the new simple add-on to the existing solenoid cost so much? The people have bought more than one of these things as ALL of the previous revisions were weak/flawed. Now there is a $150 tag, just for a cap, to contain the proper pressure that should have always been contained. This product - which is plastic, a spring and small piece of metal - should not have been more than $40 as it is functionally required to work with an existing non-included solenoid. It is difficult to call someone passionate with a mark-up such as that.

[@slep5039]

I'm still confused on what a diverter valve does. Does this replace the blow off valve?

[@PatrickAguilar]

Ceazar Carr it doesn't replace it, euro manufacturers use a diverter instead of a BOV because they use an air flow meter instead of a manifold pressure sensor

[@slep5039]

Patrick Aguilar Cool, I kinda get it, I guess. Thanks

[@MalaMak101]

Ceazar Carr from what I was told and from what I saw on my mk4 jetta, basically the diverter valve is kind of like a blow off valve but like the name says, instead of getting rid of the extra boost it divertes it back into the intake. I might not be right but it would make some sense, to me at least.

[@slep5039]

Malabar101 Thanks, that makes sense to me!

[@patw52pb1]

Historically I have seen a lot of confusion, misconceptions, misinformation and many questions about waste gates, blow off valves and diverter valves. Hopefully the following helps. The Waste Gate is located in the hot side of the turbocharger and is responsible for setting and regulating the maximum boost pressure. It is a valve that opens and bypasses the hot exhaust gas around the turbocharger turbine and either reintroduces the exhaust gas into the exhaust tubing downstream of the turbocharger or releases it into the atmosphere. The Blow Off Valve (BOV) is located in the pressurized charge air tubing after the turbocharger compressor (cold side) and is for relieving boost pressure helping to mitigate damaging compressor surge when throttle is rapidly lifted or closed. The discharged charge air is usually released into the atmosphere or anywhere in the turbocharger intake tract on vehicles employing Manifold Absolute Pressure (MAP) sensors for engine fuel management strategies. The Diverter Valve (DV) is located in the pressurized charge air tubing after the turbocharger compressor (cold side) and is for relieving boost pressure helping to mitigate damaging compressor surge when throttle is rapidly lifted or closed. The discharged charge air is usually recirculated into the turbocharger intake tubing before the turbocharger inlet and after the Mass Air Flow (MAF) sensor on vehicles employing MAF sensors for engine fuel management strategies. Why recirculate the charge air? To preserve the correct air/fuel ratio (AFR) that has been calculated by the ECU/PCM using air mass measured by the MAF sensor. Releasing that already accounted for air mass into the atmosphere would result in a very fuel rich condition. Waste gate regulates max boost pressure. BOV helps mitigate high volume/pressure compressor surge on MAP applications. DV helps mitigate high volume/pressure compressor surge on MAF applications.

[@magicUse]

but but compressor surge sounds so good!

[@TheOnlyToblin]

And murders your bearings so good too!

[@rsturbo09]

I fitted one to my s3 ap and it actually caused compressor surge??!! Was there something I did wrong?🤷‍♂️🤦 any help would be appreciated.. thanks

[@bmwloverforlife8091]

@MCM TV2 can this work on a 2009 minicooper country man?

[@bengtholmberg8590]

Love to have one! But having problem finding it for my Vw Alltrack 2018 1.8 Tsi EA 888 gen 3? I live in Sweden.

[@sirphoenixknight3567]

were is a VTA DV+ eplainer :P want a little wush wush on my mk6r Golf but dont want to blow it up since i know they dont like venting to Atmo much

[@jeffreyswarts1524]

Can a faulty Standard DV throw out a rich condition code ? Vechile Golf 6 Gti. Did order my GFB DV.

[@Tobypleass]

will Brett do anything else apart from valves etc

[@TheOnlyToblin]

Not likely, seeing as he works at GoFastBits, who build valves. ^^

[@shager350z]

Do you have one that will work on the new 2.7t L3B in the Chevy Silverado and Colorado’s?

[@JorgeGonzalez-b6k]

bro, a question I have a forge relief valve on my mk6 I would like to know if I can add a spacer to the same valve

[@redbach23tube]

Great product Brett. I'm getting one tonight for my Mk5 GTi but I still can't decide if I want the one with sound or the quieter one.

[@DaviesMartinezBeats]

I'm doing exactly the same as you tonight, but 4 years down the track... Hopefully, your experience was a good one...

[@ne2i]

need one for the older 1.8T's I like the shuttle valve idea.

[@thestig572420]

ne2i The 1.8t is vacuum actuated so the valve isn't like a on off switch like the mk5. I have the GFB DV+ on my 03 works great as a replacement for the stock Bosch DV

[@ne2i]

Great if found it! Thanks for the tip!

[@jswallet]

I bought one today for my B8 A4 with an APR stage 2. I was getting surge and I am trying to avoid problems down the road.

[@suhaibali2716]

Did GFB fixed your problem?? Or cause the problem

[@SuperSedingAngeL-yr0]

I will be purchasing soon, thank you very much,sir

[@Di-Mit]

Hello MCM TV2 why some spacers have 4 holes and others only 1 please ?

[@mattmcalister1915]

can you explain why you need an intercooler. if you live in a cold climate, does it still matter as much?

[@mmorzan]

Matt McAlister I think it does matter because when you compress air it's temperature will always rise so you need intercooler to cool it down no matter of outside temperature

[@andrewmcewan9145]

Matt McAlister it makes it more effective as the reason an inter cooler is used is to reduse the temperature of the intake air to get more o2 /cm^2 same thing as being lower down (sea level or lower ) you will make more power as the ambient air is more compressed ex (not real numbers) ambient air is at 1 bar flowes through turbo increase in pressure to 1.5 bar now compressing the air adds heat and the turbo adds heat so let's say +10 * c and the inter cooler is designed to compensate for that. so if your ambient is 10 *c lower then where the car was built you could run no intercooler and make the same power or run inter cooled and make more power as the air is more dense leaving the inter cooler. now in the real world it's a lot more complicated then that and long story short you still want to be inter cooled.

[@nbgydf]

Matt McAlister doesn't matter what temperature it is, once the air has gone through a turbo it will be hotter than it was, that's why intercoolers are always a good idea.

[@bwickham195]

Even in cold climates compressed air coming out of the turbocharger is always warmer than ambient (because you have the same amount of energy packed into a smaller space). Intercoolers are just a radiator for the compressed air, moving heat from the compressed air to the cooler ambient atmosphere. This makes the compressed air charge denser, which means you can cram more O2 into the cylinders and burn more fuel = more fun.

[@reloadingdontshoot1]

Just ordered a GFB DV+ for my Sentra Nismo. This vid seems to justify the purchase; great information

[@ccooper2654]

Love MCM and Love the Brett Series, but this is terrible camera work/editing. way to many transitions and way to fast. Dont be afraid to zoom out and/or us one cam and let the man talk.

[@bodhifyer]

gahddamn this is genius

[@winstondrepaul6730]

this gfb valve work install on my w 205 c 300

[@suhaibali2716]

I have VTA for Lexus is200... I can't take over anymore because I feel there is lag or surge.. Soon as I push the throttle padel down it takes little time to acclarate.... Before I install the gfb item I installed K&N Airfiter.... HPS intake pipe, HPS Charge pipe and HPS Turbo Resonator Delete... I was taking over so smooth..... But after installing GFB VTA.... It's hard to take over...... If you have the same problem please tell me how to fix it or what I have to do

[@solisdruid8442]

Just received a GFB VTA, from Urotuning for my Mk5 GTI. Can't wait for the slightly more spring weather tomorrow, to affix it. Woosh, a feckin' woosh, homeboy! Keep a look out for maybe a DIY, and eventual roadtrip vlogs soon. I've been around the world, but I think I just found my baby! We shall see though. I have a lot more work ahead. The biggest hurdle is learning the docu script writing, techno bs, getting used to all that; skydive into the unknow feeling.

[@TOLDyouSOagain]

Audi a4 b8 2.0tfsi with an ie stage 2 tune, catless dp, injen cold air and a gfb dv. The car was stock when I got it and now it's so much more fun to drive. Also did the front resonator delete and rear muffler. I bought the car a year ago and just rebuilt it 5,000 miles ago for oil consumption myself. Add these bolt ons and tune after the rebuild. So glad I kept the car and put my time into it. Maybe a intercooler and k04 in the future but I've invested enough at this point. The gfb dv helped hold the extra boost from the tune and dp

[@Merzehades1913]

One of the most thorough explanations on KZbin. Great job sir.

[@Neffers_UK]

Go zoom Brett cam. Sigh. Just show the shit or talk about it. Take your pick. It's your advert at the end of the day. And "metal and silicone" is not what I'd say if it were my stuff, I'd be proud that I had specified certain materials. It's as though your dad dame up with the idea, you got a prototype running and out sourced it to youlongdingdongs.

[@sdbnsdgfg]

maybe he didn't wanna be too specific with the materials so that competing companies don't steal his work

[@abirch2014]

Getting one of these for my mk5 gti!

[@udovdh]

Would trhese also be found on a TDI and could these be 'fixed' to fill the intercooler faster?

[@ogdumplings8196]

go release that turbo charge and let the turbo and compressor work harder so I can release all it built up, it is hard for me to believe that it will actually go faster, also this valve lasts no problem but what about the tube, it is not designed to release and pressure build up as frequent as this thing in there. still, kids love them. kids, buy an instant pot, not GFB DV+ on your car.

[@mattk859]

I love these tech discussions. Keep em coming!!

[@Taifuuni89]

Any possibility you could make one that would fit on the Pierburg 7.00175.04.0 valve on Vauxhall Vectra VXR? I could send you my torn valve so you could take some measurements.

[@magicmarger]

Hey would that fit my Opel Imsignia 2.0T? It's the LTG engine and has an electric valve, i guess there are not that many distributors other than Pierburg producing this type of valves.

[@rogygreatness4152]

Does this upgrade also gives you that sneeze??

[@meman24]

Can you use this with a "Torque Solutions" diverter valve adapter? I believe that piece is only for the sound, does nothing for specs or function, but it would be great to have both. Reply much appreciated!

[@RafaGmod]

GFB job is awesome! When I turbocharge mais car I certainly will buy some part to support you! Even paying around 100% of it in taxes and shipping to Brazil xD

[@iiXtcy]

Would this help my turbo surge at 2k rpms? I also got a bigger intercooler I'm stage 2 w stock intercooler I have my dv n my intercooler ready to be installed so I guess I'll find out soon 🙂 feel free to give me ur opinion or what u know tho

[@bwickham195]

I have one of these fitted to my MY11 Polo GTI twincharger. The engine is stock besides the DV+. I haven't dynoed it, but seat of the pants it feels like it holds more boost towards the top of the rev range (above 4000rpm), so I think the factory diverter was bleeding air. The car is DSG so I can't comment on improved throttle response when changing gears.

[@anasrullah709]

My friend said if no spring, louder bersin sound.

[@madvinegar]

I have the GFB DV+ in my 1.4T multiair engine, and I am very happy with it. I read some forum posts that say that the forge valve (which is a direct replacement of the stock diverter valve) is better. They say the forge valve has zero leaks, whilst the GFB one, is better than the stock, but still has some minor leaks. Is that true? My opinion is that the forge one is way more complicated to install, with many more prone-to-fail parts. Brett can I please have your comments on this?

[@Carjackd]

Will the GFB valve cure the whistling problem the standard Valve creates? Like an intake whistle

[@One_Guy]

awesome video explaining this! love it! keep the videos coming!

[@MrGuvEuroman]

Brett, can you make a PCV Bypass kit for the CDNC vag engine please? The "Africa plate" style one? I'm sick of changing the factory one, and getting oil in my intake/turbo 😪

[@JPTHRICE]

my fiesta st has much sharper response now, ive had this thing for half a year or so.

[@bengtholmberg8590]

How about maintanance? How often do you need to grease up the piston with fresh Motoroil? TIA 😀

[@jimevans1809]

Pretty cool device. Would like it if the video was more focused on showing the item and how it went together and less on fast cuts and handheld camera motion. Visually exciting, yes, but difficult to get a good grasp on the mechanism and it's function.

[@amfilipowicz]

I installed one on my 2015 USDM Fiesta ST, I couldn't believe how flimsy and shitty the factory DV was! Its guts literally fell apart the moment I touched them with any tools to begin this install. Install was really straightforward, parts are very high quality as well as packaging and associated materials (instructions, etc). It really improved with turbo lag between shifts. I've been reading on some forums though, that some people are experiencing low boost "flutter" type noises. I would assume this is normal, as my stock ST with an open airbox had the same flutter type noise on the stock DV. I'm running a COBB CAI (closed airbox system) and man, is this thing quiet yet aggressive sounding, especially if you opted to install both springs (per included instructions)

[@bibomarvs5538]

Nice.. Do you have the same concept of diverter valve replacement for 2012 BMW X5 E70 50i N63 Engine? If so, where can I check it out?

[@tmacxb]

I got code P0299 again after installing this 2 years ago. What could have gone wrong this time?

[@sherwoac]

Close in camera work explaining fine detail should not be hand held. And where can you buy the item?

[@kyeretrent3015]

Would it be beneficial to upgrade the valve and also install a spacer? I was looking at this and also the ecs spacer.

[@andyramirez8383]

Will this affect passing smog? Now that California rolled out a new software that reads ecu.

[@Josh-py2in]

The European car makers will be using this design in their cars in no time. It is by far superior in every way.

[@aminkhan1292]

what happens if i dont use the coil from my original dv and i use the one included in the box, would i get more boost?

[@dylanknight4752]

i know the fiesta st suffers greatly from dumping all the boost pressure during shifts. you get back on it and theres a good quarter to a third of a second before it moves. its so slow 0 to 60 because its losing all that time between shifts from boost dump, and it takes 2 shifts to 60. if these internals do as you say, thats something that is needed on the fiesta st.

[@ForkMyDongle]

Sooooooooo its a more complicated blow off valve?

[@swackhammer2139]

ForkMyDongle Pretty much, except it doesn't work nearly as well as a BOV.

[@hyperlogos]

Except it also lets the PCM retain boost control

[@Banks4004]

are oem subaru valves better for a little more boost? thought my donor engine and ecu was stock but its at 17psi and idk much about turbo cars

[@Subdubbin]

Thats a pierburg DV. I've replaced mine three times on my GLI...

[@C-commerce]

How do I know which one is for my cars? I looked at the site does not show which valve for which car?

[@dylanknight4752]

i know the fiesta st suffers greatly from dumping all the boost pressure during shifts. you get back on it and theres a good quarter to a third of a second before it moves. its so slow 0 to 60 because its losing all that time between shifts, and it takes 2 shifts to 60. if these internals do as you say, thats something that is needed on the fiesta st.

[@davidlamberti]

How much boost can this handle? running at around 2.3bar at the moment

[@thestig572420]

I have the DV+ from GFB on my 1.8t Mk4. Super quiet but hold the boost well .Not bad price either.

[@echocharlie9812]

I'm getting a P2261 code on a stage two plus apr tune after installing the BOV on a 2010 VW MK6 GTI it was professionally installed. what is causing it?

[@DanPellegrino486]

The valve is sticking, it wasn't oiled during install, or the tune expects some amount of boost leakage and the DV+ doesn't do it. A custom tuner should be able to verify and work around this code if needed.

[@MiranPayman]

I have the same issue it turned out the inner spring valve remove it inspect it there is some wear put oil or high temp grease there it should solve the issue this code is mechanical stuck code

[@davecheat]

Brought a Mini Cooper S and my first upgrades are a set of Potenzas and this diverter valve

[@Vampandamonium]

Great explanation and audio, but the video made me queasy and ill. May I humbly suggest recording the close ups / demos with a fixed camera so that the viewer doesn't get the feeling of going on a rollercoaster?

[@danielloke7317]

I've stop using my GFB on my Peugeot 208 GTi simply because it show error after 2 years of using it, in fact it show twice. So I got it clean and reset error code and after some time it appears again. Now I've use back the stock DV. Does GFB needs constant lubricant on the piston?

[@gavbrown6230]

daniel loke did u buy the upgraded spring when u fitted the bov spacer mate

[@tocsa120ls]

How much did Brett drive his GTI with this improved valve? I'm asking because I know the stock ECU will sense that something is wonky at the turbo (pressure does not respond as expected) and it tries to compensate with the ETB, wrecking it in the long run.

[@MrGuvEuroman]

tocsa120ls the kit comes with an assister spring, if you fit the spring it reacts different (priority closed has to snap open) and can bring check light on, If you don't fit the spring (it's optional as stated in the fitting instructions) it acts like a standard valve, I've ran mine for 15,000 miles and 1 year, 0 problems just huge gains.

[@Caleb-lbj]

DV+ GO FAST BRETT Should be Stock on all Turbo cars I love it and Thank you so much for your Design

[@CRZYvidz]

can I get the same PSHHH sound from a DV+ and from a Forge Blow Off Valve?

[@hoabadoa]

Brett talking about euro valve stuff while juggling some random bits and pieces

[@BeardedForever]

Great mod to go with a bigger turbo on my Mini Cooper S!

[@Ch28Kid]

I have DV+ on my MINI and I have to say, its a lot better than stock. I had a boost leak and I realized it was the diaphragm that was broken. Brett, I was wondering why DV+ doesn't come with any spring stiffness options? That is always confusing to me. I looked at your competitor like Forge and their DV/BOV setup have many springs included for different pressure.

[@thestig572420]

Ch28Kid On mine for the mk4 you can put different Lengths bolts in the top and I believe it is like using Stronger or weaker springs in the forge DV. Like setting pre load but I could be wrong.

[@rbjoseph25]

just looked this up for my 2002 Audi a4 1.8.think I'll be getting this. I've noticed that I'll peak at 11psi, then bleed down to 7psi. not cool!

[@dickard8275]

that is just your boost spiking

[@a_storm_inside7026]

I bought mine and the swoosh plate yesterday. Does it come with i instructions?

[@cwahl6007]

Sounds all good and dandy until you can’t hear your turbo anymore

[@jimmasterson7822]

This is so cool I want to do this but I still have 4 years of college left before I can.

[@ArtVandelayOfficial]

you can use these on hondas for adjustable vtec.