We have been reviewing this post as it has evolved, Minispares actively sources original parts as well as aftermarket. We do stock a range of Delphi parts where necessary to do so, but they are also not stocked if we believe them to be inferior to what we currently stock, and in some cases our aftermarket comes from the same supplier as Delphi.
Parts listed above that people name as Delphi being able to supply, we would offer the following instead.
Mini braking items (Formerly AP Braking or Caparo Braking Now 920Engineering)
Mini front wheel cylinders, GWC126 and GWC127. These are manufactured in the UK at the original plant (the original AP factory) to the original specifications and drawing's.
Mini rear wheel cylinders. As above
Mini front and rear brake hoses. As above, made in the UK using the original drawings and specifications.
AP Brake Hoses/Cylinders by NoahRobinson07, on Flickr
The question of stocking Delphi ball joint kits has been raised before, so to see if there was a quality improvement over the kit we stock, we ordered a set in. Nicely boxed, and as you would expect to see a kit. Upon opening however, it quickly became clear these are no different to the kits we have in stock, as these pictures show. They have the same kit labelling on the bag, and the same reference to batch codes. The main difference is they come with 2 extra lock tabs. We checked with our supplier of kits, and indeed they are the same. They add the extra tabs at the factory and then supply them to Delphi.
Mini Spares V.s Delphi Packaging 1 by NoahRobinson07, on Flickr
Mini Spares vs. Delphi Ball Joint packaging 2 by NoahRobinson07, on Flickr
Mini Spares vs. Delphi Ball Joint Exploded by NoahRobinson07, on Flickr
The knuckle joint we will indeed look at, and evaluate whether that is worth stocking
Engine mounts have also been mentioned above. This is largely market lead, Xpart (the MG Rover source) now only offer a non genuine aftermarket variant albeit at a largely inflated price. We offer a non genuine version (www.minispares.com/21A1902MS.aspx), as well as our own manufactured item made to the original drawing (www.minispares.com/21A1902.aspx)
In summary, people have suggested that we aren't interested in the quality, which is untrue.
In a time where come companies are starting to advertise/retail cheaply made brake hoses and ball joints for cheaper than I can purchase a quality item in for, we will continue to buy these items from reputable sources.