A few thoughts:
1. That outlet location seems problematic that close to the driver's window: not only noise, but fumes.
2. I'd want to hide the exhaust rather than double-down on the visual focus.
3. Changing the collector so its exit is under the car may not be possible, and I don't know if exhaust gets frequently removed.
4. Using that collector, you could do a system similar to how the Maxies were: exhaust coming from collector a bit upstream of a capped-off collector exit.