I love it! super easy to install, just had to remove the under body cover plates with an 8mm socket (about 7 screws per side) the once a could wiggle the plug off it was easy to install. I can hear the difference, just ever so slightly deeper gurgle when open... I certain want it louder, but for now its a great little improvement!

Love it!! easy install

Just as shown on the videos, easy to install and definitely makes a difference.
Very happy.

Easy install and works great on my BMW M50i. Would definitely buy again!

amazing product at an amazing price. the shipping inly took 9 days from australia to canada. i integrated mine in the rs3’s, garage door opener in the mmi system. i’m curious to know how this would hold up to our terrible winters here though since it was designed in a warm country, but that’s a story for later.

Awesome device, car sounds lovley with the flap open and in sport mode

Thank you for the quick response and out come. System working top notch now.

It works. Did have to remove rear panel for access, otherwise, pretty simple install.

Easy install and does what they say.

Does what it says on the tin. Only comment is not sure it made the difference in “sport mode”

But it works perfectly.

Great piece of kit. Excellent speedy delivery from Australia to the UK. Would highly recommend.

Quick delivery from oz to uk all works great would recommend good product

Easy to install. Allows the car to make cool noises.

It is amazing and 100% legit works as advertised

2min to fit and X5m comp sounds fantastic when open valve, fantastic product.