Which aftermarket exhaust system is best for the Toyota GR86?

I'm thinking about upgrading my GR86's exhaust system and am considering a few different options. I want something that will give my car a louder and more aggressive sound, but I also don't want to sacrifice performance. Can anyone recommend a specific brand or system that has worked well for them?

I personally have the HKS Hi-Power exhaust on my GR86 and it has been great. It gives the car a louder and deeper sound, but doesn't have any negative impact on performance.

I've heard good things about the Borla exhaust for the GR86. It has a nice balance of performance and sound, and the build quality is top-notch.

If you want something that will really make your GR86 stand out, check out the Tomei Expreme Ti exhaust. It's made of titanium and has a unique deep tone that sounds amazing.