s550 v6

What are the specs on each driveshaft? The v6 driveshaft will shatter over 120 and I thought an easy solution would be to swap in an OEM GT driveshaft that is made for a manual with 3.55 gears. The manual is still the MT-82 so that seems simple enough. The only part I’m not sure of is if the v6...

I have borla stype catback for my 2015 v6. I was thinking about adding an hpipe or xpipe. I want to keep my cats and resonator. Which would sound better??