Once you chip it, the difference is amazing. Then if you really want to light it up, the variable turbo and uprated intercooler makes it a rocket ship.
Sadil, if you go this route you will have far better results if you have you tune done specifically for the additional components you are changing out, you will get better performance (do the exhaust too, if not the whole thing, remove the center can). I would also highly recommend the uprated exhaust manifold and studs.
The stock Td5 manifold has a habit of warping, and going with an uprated turbo it's going to be more prone to that with the additional heat. Nobody enjoyss changing them out and having to drill out broken studs.
In for a penny, in for a pound...