A pair of high-end, naturally aspirated i6's
These engines, especially the Mamba, are designed for high end luxury sports cars, and not large-scale production.
The Diamondback, a 400 horsepower i6 with miraculously low emissions
![Image](http://i.imgur.com/gWc6MdX.png)
The Mamba, an i6 with the same 4.2L block, but an additional 100 horsepower and somewhat ludicrous manufacturing costs.
![Image](http://i.imgur.com/S8HEF1M.png)
The Diamondback, a 400 horsepower i6 with miraculously low emissions
![Image](http://i.imgur.com/gWc6MdX.png)
The Mamba, an i6 with the same 4.2L block, but an additional 100 horsepower and somewhat ludicrous manufacturing costs.
![Image](http://i.imgur.com/S8HEF1M.png)