There is quite a lot to exhaust design, don't consider it trivial. Spent nearly $2K on an exhaust system for the Maserati 228 I had and ended up with a stainless steel Stebro when I should have just got the stock Anza from the git-go. BTW the 228 had two turbos and believe me you do not want ANY back pressure in a turbo exhaust system! Resonance was also a big issue due to the 60 degree V of the 228 and firing order. I guess if I were going to change the VX exhaust I would go for the stocker unless someone really made a good case for performance gains with an aftermarket unit... thx,
Vis

PS I will need an exhaust soon, anyone have a rough idea of pricing for the stock unit? thx