Universal Adjustable Turbo Blow Off Valve,Turbo Splitter Valve,Recirculating Dump Valve Kit Compatible with GTi Golf Audi Beetle Jetta A3 A4 A6 TT 1.8T, By LIYYOO

What you need to do for this BOV to be perfect.Unscrew the top 4 screws that hold upper part together where the spin adjuster is..Pull spring and aluminum cylinder out completely, leave the skinny O-ring on the aluminum cylinder.Add another O-ring around the smaller side of the aluminum cylinder, this way when it closes all the way from spring pressure there's a good seal.Also (unscrew spring pressure nut so it's at tightest setting without falling off)Take the spring and stretch it a little (you could also harden it but that's a process)Re-assemble, blow through inlet it should seal perfect now, don't worry the new O-ring doesn't interfere with operation. Without doing these steps you'll just have a massive boost leak.The brown O-ring in the picture is where to install the new one, I also show how it sits in the BOV (the right pic)Congratulations you now have a turbo-smart perfect equivalent BOV for $200 less.You're welcome 😉

It does it’s job it doesn’t set off any check engine lights it has an adjustable top on it for different types of Boost pressures If your car is stock You won’t hear much of a sound But itS still noticeable if your car is modified With a bigger turbo front mount intercooler and a tune and running higher than 10 pounds of boost then you’ll definitely hear him much louder sound coming out of the blow off valve.. For the price of under $30 I’m highly satisfied with this product

There were mixed reviews so I took and chance I ordered this hoping to save a little money. It leaked through right out of the box. I tried the fix another buyer posted , it just blew the O-ring out the first time it activated. I'm my experience atleast, save your money and buy a reputable name brand.

I used to have a forge 007 splitter valve and this is almost if not the same quality. Sounds awesome and have not had any issues with it

Had to return item due to not working correctly on my 01 Audi A4. It caused my turbo to flutter. If your car came with a diverter valve, stick to a diverter valve. I ended up with the ARP R1 diverter and it works perfectly and sounds pretty good.

Not good... leaks out of the box. You have to work on for it to seal correctly only to get air fuel ratio issues "check engine light" for out of range fuel trims weeks later. Just get the real deal or go stock.

The media could not be loaded.  It’s just like the forge 007 except backwards if that makes sense. Forges hose connector is on the opposite side as this one. It comes with extra seals, replace them before u even put the bov on your car because it came over tightened and my seals were ripped. For $30 prime shipping this is a steal.

Got it all hooked up, and boost leak. Went to the review I read on how to fix this that someone generously posted and it did not work, even went to advance auto got an o-ring kit and still leaked, somethings wrong with the production of this product, I will sadly be returning. Plus even leaking I’m still hitting 15PSI and zero sound, very upsetting :(