Installed Go Fast Bits DV+, WOW!

**MALMGRDC** · 02-14-2017 10:38 PM

If you haven't done this, it's probably one of the least expensive mods I have done to date that make a noticeable difference on the butt dyno. It is as nearly noticeable as going from stock cat to catless test pipe, when stock, for those of you that have experienced that. Best of all, I got no CEL (they warn about this in the instructions) after a 200 mile drive today! Boost builds dramatically faster, boost holds to redline and does not drop or fluctuate anymore, it boosts harder in lower rpms and there is now very minimal boost drop on fast, high RPM shifts (the instructions weren't lying about this either!). I didn't do a full throttle run tonight with gear shifts (took the ol lady out for Valentine's Day), but I have no doubt you would pick up ET and MPH on the strip with a good driver. For daily drivers, you will notice a huge difference with part throttle driving. Install was as hard as removing and installing the stock diverter valve (three torx screws), basically that's all you are doing, plus swapping out a couple springs and the new spacer plate/piston assembly (this replaces the factory piston design with Go Fast Bits DV+ design), it reinstalls with provided lengthened screws that will use an allen bit to install (it's much, much easier to squeeze an allen wrench in there as opposed to a torx socket and extension.) I would buy this again! Feel free to ask questions! I got mine from ECS Tuning!

https://www.ecstuning.com/b-go-fast-.../gfbt9351~gfb/

**KillerQuattro** · 02-15-2017 06:31 AM

When pulling out your old DV, did you notice any damage? Im a little surprised to hear such a positive write up from just replacing a DV. As I just installed a HFC, and love feeling the power difference, I wonder what this mod will feel like. At this point im not sure what shape my DV is in, but this sounds like a great way to future-proof the DV for a future JHM Stage 2 tune. Tons of great reviews on ECS about this product so I think i might pull the trigger on this soon! Thanks for the write up!

**MALMGRDC** · 02-15-2017 06:52 AM

No damage on the OEM DV, it was new as of a month ago. It's not really just replacing the diverter valve, you're using part of the stock DV and the components from the Go Fast Bits kit to modify the factory design to one that works very well (very different design from stock). I feel like this is how it should be from the factory. Best $130 I have spent on this car thus far! It's not a huge neck snapping difference, but I could definitely tell. I was very impressed for the price.

**RickB_7** · 02-15-2017 07:34 AM

My experience with the DV+ wasn't as life changing, but I will say it was a noticeable before/after. I noticed my car pulling harder to redline and quicker throttle response when downshifting and giving a little blip to the throttle. My oem DV was in good shape too.

**MALMGRDC** · 02-15-2017 08:05 AM

Originally Posted by RickB_7

My experience with the DV+ wasn't as life changing, but I will say it was a noticeable before/after. I noticed my car pulling harder to redline and quicker throttle response when downshifting and giving a little blip to the throttle. My oem DV was in good shape too.

Exactly! Mods are expensive for these cars. When I find something useful under $200 I'll usually rant about it lol. I just never heard much about the DV+ and was surprised no one had mentioned it to me (or maybe I didn't pay attention) earlier as I am still somewhat new to the Audi game.

**blitz2190** · 02-15-2017 08:43 AM

Originally Posted by MALMGRDC

If you haven't done this, it's probably one of the least expensive mods I have done to date that make a noticeable difference on the butt dyno. It is as nearly noticeable as going from stock cat to catless test pipe, when stock, for those of you that have experienced that. Best of all, I got no CEL (they warn about this in the instructions) after a 200 mile drive today! Boost builds dramatically faster, boost holds to redline and does not drop or fluctuate anymore, it boosts harder in lower rpms and there is now very minimal boost drop on fast, high RPM shifts (the instructions weren't lying about this either!). I didn't do a full throttle run tonight with gear shifts (took the ol lady out for Valentine's Day), but I have no doubt you would pick up ET and MPH on the strip with a good driver. For daily drivers, you will notice a huge difference with part throttle driving. Install was as hard as removing and installing the stock diverter valve (three torx screws), basically that's all you are doing, plus swapping out a couple springs and the new spacer plate/piston assembly (this replaces the factory piston design with Go Fast Bits DV+ design), it reinstalls with provided lengthened screws that will use an allen bit to install (it's much, much easier to squeeze an allen wrench in there as opposed to a torx socket and extension.) I would buy this again! Feel free to ask questions! I got mine from ECS Tuning!

https://www.ecstuning.com/b-go-fast-.../gfbt9351~gfb/

you most likely had a bad DV with a minor leak or something, DV don't increase performance they just relieve pressure to prevent turbo surging/damage from back pressure. Though your turbo is probably thanking you as it was most likely working harder to make the desired boost with the bad DV. On that note if you want the best performance(back to factory performance) you can get without putting a lot into it, build yourself a boost leak tester and I bet you find at least one leak, most turbo cars will have them at this age.

**oVeRdOsE** · 02-15-2017 08:59 AM

I wish I can say that there were a difference, but unfortunately (or fortunately), I put a complete exhaust, including the hfc, intake and the DV+ on the same day.
Then I ride around 20km, to get a stage 2 flash.
So yeah, the difference was huge, but not only because of the DV+...

On paper it's a nice product, for sure it worth the money and time.

**klrider44** · 02-15-2017 09:08 AM

I replaced my OEM diverter valve with a go fast bits one for the piece of mind that it won't go bad. Didn't notice any performance gain tbh.

Sent from my iPhone using Audizine

**oVeRdOsE** · 02-15-2017 09:14 AM

Originally Posted by klrider44

I replaced my OEM diverter valve with a go fast bits one for the piece of mind that it won't go bad. Didn't notice any performance gain tbh.

Sent from my iPhone using Audizine

power curve ''should'' be more interesting, especially between shifts. Not for the peak output, but on the curve level only.
But I doubt it can be visible on a dyno graph. Maybe on the butt dyno tho.

**vce1232000** · 02-15-2017 09:16 AM

Had the DV+

going on 3 years. No problems with it. You wont get any HP+

from it. But you get

of a DV thou

**yxri** · 02-15-2017 09:25 AM

Placebo effect has taken over

**MALMGRDC** · 02-15-2017 09:43 AM

I've built some monster turbo and supercharged V8s,6s you name it. Believe what you want, this was my experience. I'm not saying this bolt on is going to add any horsepower. It makes more use of the existing pressure and doesn't leak unlike the factory DV. Part throttle is most noticeable, WOT doesn't change because I didn't change anything performance wise, maybe there was some confusion here.

THIS PART WILL NOT ADD POWER

- - - Updated - - -

Originally Posted by oVeRdOsE

power curve ''should'' be more interesting, especially between shifts. Not for the peak output, but on the curve level only.
But I doubt it can be visible on a dyno graph. Maybe on the butt dyno tho.

Daily driving difference for sure.

**MALMGRDC** · 02-15-2017 09:47 AM

Originally Posted by blitz2190

you most likely had a bad DV with a minor leak or something, DV don't increase performance they just relieve pressure to prevent turbo surging/damage from back pressure. Though your turbo is probably thanking you as it was most likely working harder to make the desired boost with the bad DV. On that note if you want the best performance(back to factory performance) you can get without putting a lot into it, build yourself a boost leak tester and I bet you find at least one leak, most turbo cars will have them at this age.

Nope, definitely was not a bad diverter valve, the DV+ just does what it advertises it does. I wasn't saying there is some secret horsepower hiding in the DV. If I wanted to add 5 horsepower I cover my car in NOS stickers and put a CAI on an otherwise stock car

. It was a cheap mod that made a noticeable difference in my drive. You're absolutely right, that's exactly what it is supposed to do!

**MALMGRDC** · 02-15-2017 09:51 AM

Originally Posted by yxri

Placebo effect has taken over

Fake news

**SoFarGon** · 02-15-2017 10:13 AM

Originally Posted by MALMGRDC

It makes more use of the existing pressure and doesn't leak unlike the factory DV.

THIS PART WILL NOT ADD POWER

- - - Updated - - -

Daily driving difference for sure.

A properly functioning factory rev. D diverter valve works in a closed system... it won't leak unless it's faulty.

**RickB_7** · 02-15-2017 10:19 AM

Originally Posted by SoFarGon

A properly functioning factory rev. D diverter valve works in a closed system... it won't leak unless it's faulty.

Not challenging your opinion or facts. But my understanding is the piston style DV rather than the diaphragm that the oem DV has allows for less loss of pressure between shifts as it opens and closes almost instantaneously. Of course this is the info given by GFB for the benefits of their DV over OEM.