Not sure how to rate this but we have a few choice for the "TSC" mod and ended up with, i think, the best one on the market regarding install, fitment and perfo !
Not advertising but it was so easy to install Velocity TSC and also it has no HUGE box or controller to tie-rap under the dash took me about 30min to install it and fit the controller in a nice spot
Plus pricing is super reasonable

Make a hole in the side trim the size of the wire

 

Congrats on your nice install. Happy to see others installing these devices.

In my case, I bought the device before picking up the car, as I knew it had terrible lag (2016 200t FSPORT here). My device is a SprintBooster but for me, it's set it and forget it, I didn't bother to mount the controller. However, I really like the way you did yours.

Also I'm curious, in case you also have the 200t. If you floor it from standstill do you get the lag or a bit of lag? On mine, if I do that there is still a bit of lag. So I have to press it half-way in the first second (still enough to get moving right away) and then mash it to the floor in order to trick the car ECU and get rid of the lag completely.

Best of luck and no cops on your roads!