Diverter valve...yay or nay?

[Breakthru]

Hey guys. So i have begun doing some modifications to my 1.8T A4 [wheels, suspension, blacked out grill and emblems], and now would like to do some engine upgrades. I am trying to keep this as a budget build, so looking at the more inexpensive upgrades before $1500 exhaust systems and $500 ecu upgrades.

So I found the diverter valve. Fairly inexpensive, seems easy enough as a DIY install. However, as i did many searches on there, there seemed to be some cons to the DV. For those who have it, did you keep it? Did you have problems? Did you notice a difference after install [good or bad]?



Thanks again in advance. Appreciate it.

[diagnosticator]

The DV is required. You can install a different DV, but won't realize any benefit.

[milan2k13]

Your car already has a diverter valve, stock is 710.. Upgraded is 710N.

If you will be boosting more than 11 psi I would upgrade.. I got a forge 007 dv.

[seanf86]

You will only notice a difference if your stock valve has failed. I went with an oem 710N then to a forge splitter. Your best bet for a 1st mod would be a flash

[Breakthru]

Sorry guys, guess i didn't word my question correctly. I meant to update my DV. I am aware there is a stock one. However, some sites claim that you will recover any lost boost by upgrading to a newer version.

Maybe an ecu update is my best bet, even though it's a bit more costly. Any recommendations for ECU?

[blownb6]

The websites are correct , but that is if your stock dv is leaking , oem dvs tend to go right after stage one tune , due to the diaphram being weak , dv upgrade is deff good , as for a tune check out motozza tuning.

[Charles.waite]

You'll only "recover boost" if you're missing some in the first place. Replacing a functioning stock DV with an aftermarket one will make zero difference on a stock car. Just get a tune.

My 710N has been going strong for 2 years now at Stage 1, boosting up to 19 psi. No reason an OEM style DV can't hold up to a mild tune, though old, DVs tend to deteriorate quickly when they're all of a sudden asked to handle 2x the boost level. Old components just wear out over time...

Since you next question will be, "How do I know if I'm losing boost": Get a boost gauge (I have a Podi and its awesome) or build a boost leak tester and test your intake tract.

[Johndock23]

I did an upgraded forge 008 first and I noticed a difference in sound. The reason for my upgrade was my future increase in boost, which is when I did an APR stage 1 ECU upgrade. In my opinion, this is the best one you can do. It may not be the most horsepower gains but to me APR has the most reliable software and I am really pleased with the gains.

[A4Maine-iac]

Cost effectivness. Best bang for you buck is a tune. $ wise i went with a place called inmotion tuning for my 1st tune. $250 and went from 180hp to 205hp on 91 oct and 215 or so on 93 wheee! For anything above and beyond a stage 1 go with the bigger names.

http://www.inmotionusa.com/audigraphs.html

[Hugh@EuropaParts]

Just in case anyone is interested...

Diverter Valve (1.8T & 2.7T, Updated "N" Version)

This version was originally used on 225hp Audi TT so it's great upgrade for 2.7T and 1.8T motors. Upgrades and replaces the weaker 06A145710P valve. This "N" version is so much better, we stopped selling the "P" version completely.

This diverter valve is manufactured in Germany by Kayser, Genuine OEM manufacturer. Bosch valves were prone to defects and were replaced by these stronger and improved Kayser ones.

[ricekikr]

No need for an updated or aftermarket dv, unless yours has failed or is about to fail/old. The stock non-N valve holds 35+psi just fine. It won't flow enough to release anything above 25psi, neither does the 007, but it'l hold in the boost just fine.