The product is of very good quality, everything worked just fine althought one of the videos I uploaded will show that the vacuum module was not working but I figured it out later on, you just have to calibrate the remote to the module by pressing the small button on the module and a random one on the remote simultaneously. After the install I can say that most likely I will straight pipe the car as the muffler performs fantastically, when the valve is open you can hear the car quite well and when the valve is closed you hear just the engine running. Amizing product and service. Most likely I will be buying again for some family members! Also the power cable that goes to the cigarette lighter is quite long so in most vehicles you won’t need an extension, mine does not have one at the back, and the silicone tube is also enough as I still have some excess left.