Based on the zip tie cable extension and red tape over a bike light, you probably have more to worry about then which pipe will give you a mile per hour faster.
I honestly have not been able to tell a huge difference in performance in the 2 pipes. The Estoril is a way better pipe with the lows and the mids being much nicer. But as far as top end it may only be a couple miles per hour difference.
Now the only question. Do you know how to tune your carburetor for the pipe? If so I would put the Estoril on there and tune it correctly and look up how to correct the size on your brake cables. Buy some Knaps or make your own by drilling a hole in a bolt. That whole thing looks like a recipe for not being able to stop when you need to.