This is a great upgrade for the TA, and works perfectly with the carbon kit that 3 racing makes. It's lightweight, and the design makes it much easier to adjust the pulley or belt tension since it eliminates the stock bulkhead cover.
Note that if you're planning to use this with the carbon upgrade, you'll need to use the blue washers provided with the carbon kit for to shim the front bulkheads, as the front upper deck piece is a little higher. You'll also need the screws from the stock kit to fasten the bulkheads to the chassis, and they fit perfectly. I would recommend that you use threadlock to keep them secured.