I believe Long Life and Power Flow exhaust systems are pretty reasonable.
They can make the system up to produce the noise that you like.
The skills of the individual fitter here vary from region to region, so on the whole I don't think you will be disappointed with the end product after reading some of the many reviews written.
There may however be a dedicated Pug specialist who may have a system on the shelf ready to go, although I am sure that somebody (Maybe Jarrus) will be along in a while who can either confirm this or recommend someone to you.
Good luck