The installation was pretty easy, simple replacement. The supplied bolts are to short to connect to stock front pipe, so I made the holes ever so slightly bigger and used the stock spring bolts. It sounds amazing very deep and pretty loud, no video does it justice, when you see a video turn the volume up full blast and you'll get a decent idea. You can hear it inside the car while driving, drone is a little loud between 3-4k rpm (running on the highway in 6th gear). The exhaust also takes a while for the film to burn off, so it smells like burning plastic/film/grease for a while so far gone about 50 miles and I still smell it. Not sure where the silences are the guy below mentions but also didn't look to heard. Very impressed.