Did this today, very easy install with the hoist and removing the stock piping that was only 3700km old. Sounds fantastic, not too loud on idle but opens up to a deep throaty rumble when pushed, I'm a very happy boy today. Also noticed the throttle response has smoothed out a bit and possibly revving a bit quicker and easier. I'm sure it has even liberated a few kilowatts and as a bonus its 16kg lighter than the stock system
