that chip doesnt really increase bhp like most chips, its just a chip to increase the boost limit allowing more bhp, some are 14.5psi limit, others 18psi and others 22psi or unlimited boost, so you cant really tell unless you increase your boost and see where it cuts out.

think the most common are 18 psi ones, which is roughly 185-195 bhp with general mods, unlimited ones can be for big boost resulting in bhp of over 200bhp.