Your question has no answer except the rediculous such as:
The tubi.. because I have one. Usually whatever someone has is going to be the "best".
Seriously, whatever is best for one is not going to be best for another. Best at what? looks? sound? quality? weight?
The best thing you can do is deceide what you want in an exhaust and what you want to spend. Then try to read about all of them you can find, listen to sound clips, try to see some in person, and then make your choice based on what is best for YOU.
I have a Tubi and i'm happy with it, although for some it may not be loud enough, and the tips are a bit crooked, but not enough to bother me.
What was best for me was the fact that I wanted dual tips, and a sound louder and different than stock, but not so loud as to interfer with conversation or the stereo. The Tubi was the best for me.
