Over the weekend, I was able to install the MSP ECU and TWM short shift kit. The ECU was not bad at all getting in, and the power difference is very noticeable. Though, when I first when to start the car after installation, the stock alarm freaked out and I had a to try a couple of more times, but no issues since. The TWM kit on the other hand, was quite difficult due to the very small work space, the number of small bits connecting the new shifter to the linkage, and over need to just have the car up on a lift instead of being on my back.
Over all, the end result of both is excellent. The car feels somewhat stronger and the heavier shift weight gives it a more sporty feel.