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Sigh... first of all. Sales or no sales, it doesn't change my salary. Second, I'm in the R&D department. So everything I work off has to be logical and backed with data to support my "logical claims". At part throttle when boost is very minimal it's not at 300F like it would be at 20+psi. Air...

That makes no sense at all. You must be the same guy that emailed me and said you felt it in your feet through the firewall. :lol:

BOV works as two functions, the pressure on top with spring pressure is what keeps it closed during WOT. Then when throttle closes there is slight vacuum and pressure differential in the system that lets the BOV open. So in this case if you have the valve closed, the spring pressure is only...

Curious to see, please post a picture when you have a chance. Glad you're enjoying the system!

You need to cover it with one of the provided 1/8NPT bungs. The orange diaphragm showing is normal.

Have him follow our install guide posted online. https://www.jb4tuned.com/instructions/B58TU-charge-pipe-BOV-install-guide.pdf

Email us some pictures and I will compare it to our M340i in house. [email protected]

You can run the next spring up if you'd like, it will just not blow off as much. In our testing we haven't seen any parasitic loss with this current setup. It has been running on our B58s for over 2 years now.

That connects to the stock inlet which is not touched or moved, it gets installed on the turbo in the same place so I'm not understanding how you're having a fitment issue unless your turbo moved somehow.

There are easier ways to say that you don't understand how something works. Being constructive and giving data would be the best way instead of just saying something is crap :)

During part throttle the throttle blade is partially open to hit target boost (regulates boost per ECU target) The bleed off is normal as it's an aid in regulating boost control. Check your logs and you will see your target psi will match requested psi.

Maybe 8 months to a year as we made a few hundred sets. There is nothing wrong with the pipe or sensor location, everything fits as it's supposed to and works flawlessly. It doesn't hit anything, it's not hard to install, etc. You install it once, and that's it. Enjoy the upgraded pipe with BOV lol.

Not really since nothing is defective on the pipes, that's how we did it to ensure proper engine cover fitment. Push lock fittings can be reused. Push the tab in, then pull the hose out.

We will change the sensor orientation on the next batch, it's confirmed. Can you elaborate more on what you mean one and done on the push lock fittings? You mean set and forget? Yes, they realistically will never pop off. I used them on my 340xi that was making over 800whp (40psi). Email us and...

You can try to use the next stiffer spring up which looks to be the purple spring.

Awesome, that is what you want! Turbo flutter is bad and damages the turbo. That means the BOV is working properly and venting the pressurized air out instead of going back and surging the turbo.

Thanks for the feedback! Couple things to note. The Turbosmart raceport BOV alone is $280, so if you can find a full top and bottom chargepipe for $120 made in the USA then we will buy from you :) Bolts are included as stated a couple posts above, some kits were missed unfortunately. Email us...

Put the car on the dyno just now to show that the BOV functions as it should. Stays closed during wide open throttle and opens up during let off. Here is a video and a log of the run for you guys to see :)

Super smart! Gotta make use of what you have :) Email us and we'll send out the correct bolts.

Hi, Payam here to help some of you guys with questions you might have. Install guide can be found on the website where it was purchased, otherwise here is the link: https://www.jb4tuned.com/instructions/B58TU-charge-pipe-BOV-install-guide.pdf Correct, looks like some of the kits have missed...