https://youtube.com/watch?v=z58Q1rk9_ucSomething we've been working on for a little while is our own Titanium exhaust for the S55 engined F8x M3/M4....
Decat
https://youtube.com/watch?v=YE8t55_dfYoWe have taken cars over to the Supersprint factory in Italy for development before, and the F90 M5 was no...