I wanted Fabspeed but ended up with the much cheaper Top Speed Pro 1 Exhaust with secondary bypass pipes for a total of I think $400 with shipping.
They sounded amazing and I never regretted buying it. I installed it myself and it took me about 4 hours. The only issue with the Top Speed Pro 1 exhaust is fitment.
The bypass pipes are easy to install and fit well. But the cat-back exhaust will not fit without lots of persuasion and lots of washers + long bolts to get the right fitment. The diameter of the pipes were off as well and did not connect to the mid pipes correctly so I had a mechanic fix that as well to stop the exhaust leak.
As you can see in the video, the exhaust moves around a lot. I ended up welding it($50) after a while, which solved the problem. After hard driving, the exhaust makes nice popping sounds.
Top Speed Pro 1 Bypass pipes DIY install and sound video
https://www.youtube.com/watch?v=jC-IySYr3q4
Top Speed Pro 1 cat-back exhaust install with sound clip.
https://www.youtube.com/watch?v=HlpQ7Su9-Wk
Another exhaust video I took a year later.
https://www.youtube.com/watch?v=LEEIpI4Z5PE
The sound really turns heads. People think there is a Ferrari or 911 GT3 coming down the street but it's just a Boxster.
After more than 1 year with the exhaust driving through rain, snow, and on racetracks and autocross, I had no issues with it. The chrome finish stayed clean.