Great peace I absolutely love it works perfect. Best money I spent on my car.

Good product, does what it says.

It works perfect.

Everything is working according to the description.

Got mid pipes and 11mode valve controller. That simple set up gave me exactly what I was looking for. Very similar, maybe a bit louder than my 2018 TTRS.. 8Y RS3 was just way too quiet

Just received mine….super fast install, and works perfectly! Car sounds so much better. Thanks for developing a great product!

Simple installation, car sounds much better now!

Fantastic mod. Easy to install. A unique feature I wasn’t expecting on my F95…. when I approach the car and touch the door handle, the valves close. I like this as I have a modded exhaust and cold starts are too loud.

Just what I needed for a sound increase. My v8 twin turbo growls deeper and now has pops, bags and burbles - while all completely stock. It’s definitely not a replacement for a cat back exhaust but to me, it’s a perfect way for my car to sound more aggressive. Would definitely recommend.

Responsive customer service, easy install, works perfectly

Purchased the product and fully anticipated having to send it back because the 4.0i only has one valve to control the exhaust and BMW designed it to be quite. The product actually works real well. It’s my wife’s car and she did not want to change the sound aggressively. While the product doesn’t change the decibel level significantly, it adds a nice rumble and does sound more aggressive.

I really loved the product and the service I received. Huge respect to you guys — keep up the great work!

Love it. First "upgrade." So glad I found this product.

Little hard to undo the factory plug/fitting. Once out super easy to install. Little louder and works as described.

Install couldn’t be easier. Amazing sound improvement!