Hi Delphi pads are good as they are fitted to Vauxhall,Citroen,Peugeot, and practically every model in the U.S. and without going into the same information again they will be either E11 or E90 marked which means they have to pass stringent tests to obtain the rating to be sold as aftermarket or in the case of Delphi as O.E. equivalent, despite the overwhelming evidence as to the quality of these parts there are those who would rather spend a lot more on a box that has been badge engineered with the same pad inside, pushing home the point TMG Friction own most of the brake manufacturers in Europe and having used most brands of brakes during 950000 miles as a cabbie I can assure you Delphi pads are good as gold based on the fact that I used them on my last cab and they pulled up a ton and quarter 2.2 Titanium X sport estate pretty damn quick from over a ton, [Did I say that], its impossible to buy cr@p brake pads then days even Apec have had to up their game with the advent of E11/E90, Google it as if your fixing cars it makes fascinating reading.
Steve.