Super simple install that I did with no tools, without jacking the car up. Was able to get to the connectors and installing without issues. Took a whole 2 minutes start to finish. The unit works as described. Pressing the top button opens the valves completely, while pressing the bottom button retains stock functionality. Design of the units that plug into the stock valves is nice, because the the little bracket it comes with basically installs on itself.

Very easy to install, and also very easy to use. The car sounds great in all modes now!. Best upgrade to the car sounds far!

Fantastic product, easy to install, and even more so if you use a car jack to slightly lift the car. On the RS3 8Y pre-restyling, the sound difference from low RPM up to around 3500 RPM changes completely, since the valves in the stock version never fully open. The sound of my car has finally improved at low revs and I'm absolutely satisfied. The price-quality ratio is unbeatable.

These valve controllers really open up the exhaust and give me the sound I was looking for!

Bought this valve controller for my BMW X3M competition (f97) here in Australia. Delivery was made within 2 business days! Product was exactly as per the listing pictures. This replaced my faulty CG precision vsc2 (likely failed due to vibration). Install time for that was about 10-15 mins to tidy the cables etc but this was even faster. Literally not even 1 minute per side and works as expected. The valves respond quickly (as quick as the vsc2) to open and slightly longer to close - perhaps this is due to two controller modules being required (one for each actuator). Only installed this today but highly recommended for the price. Will update this review with longer use case observations! Overall very pleased!

Ordered 1 unit and had it delivered to Sydney, Australia within 24 hours. Installed it myself - 15 min job - very easy. Excellent product - very clever - highly recommend. A fraction of the cost of competitors. With the click of a button you can have the exhaust flap fully open. Common misconception that Dynamic mode fully opens the flap - only in cold start or above 4,000 RPM. Whereas this allows the flap fully open at all times even in Comfort.

Works perfectly.
Easy to fit using ramps.
No issues.

Worked great and easy to DIY install look 5min

Super fast delivery, ordered last Friday and got the package today (Monday.).
Really happy with how easy the controller was to install and use.
And scored it with a good discount!!

Couldn’t be happier with these modules. You can install one or the pair and have more control over volume whilst overriding the OEM valve fluctuation. A must have for upgraded exhausts or RES deletes. Top it off with great customer service and a great price 💯

Super simple install and do exactly what they say they will. At the click of a button they allow you to open the factory exhaust flaps regardless of drive mode or revert them to factory drive mode settings. Highly recommended!

Perfect fit