* Capacity: You can use the original fuel tank, or a replacement tank of similar or different capacity (larger or smaller) depending on your needs. The tank's size won't directly affect the TPI system itself.
* Fuel Pump: The crucial element is the fuel pump. The TPI system needs a fuel pump capable of providing the necessary pressure and flow. This is usually a higher-pressure electric in-tank pump. You'll need to ensure your chosen fuel tank is compatible with the fuel pump used in your TPI conversion. You may need an aftermarket fuel pump or a fuel tank designed to accommodate a specific high-pressure pump.
In short, any appropriately sized fuel tank that can accommodate the fuel pump and lines of your TPI conversion will work. Focus your attention on selecting a compatible fuel pump, and the fuel tank will be a secondary consideration after that's sorted.
