I have just installed my HKS Legamax on my Mitsubishi Lancer. It only took me about 30 minutes to install it. The hardest part was getting the rubber things holding the stock exhaust out. Moreover, the stock heat shield is sharp and I cut myself when I trying to remove the stock muffler. It is as heavy as the stock exhaust. Therefore, if you are looking for weight savings, it is not the right exhaust for you. You are hardly tell that you gave an aftermarket exhaust as it has a very nice deep sound. It sounds very nice and classy. When I first exhaust at over 5K RPMs, it seems like the car didn't like it. However, it does love it now! The RPMs goes up really fast when you step on it now. I got it to redline by accident due to how fast it goes up. What I dislike is that I think that the size of the pipe could be improvement. The tips are really nice! They have that burnt tip and the tips are huge in diameter. In addition, you don't see the burn crap under the exhaust. What I feel is that it is expensive for being an Axle-Back exhaust. Overall, it is easy to install and looks amazing!

Besides the awesome acoustics, it enhanced the performance of my car eg. Torque, horsepower. Heavy though, but compensated by the performance boosts it gives.