Whats the difference?

[nefarious7907]

I am noticing a lot of companys selling drilled rotors for instance Turner Motorsport sell them I think for like 90 buck and Ireland sells them for 80 and BMP design sells them for I cant remember. But are they all selling to same rotor just at different prices or are there differences between them.

[MattE30]

Probably different brands.

I remember when I was shopping for suspension and I asked Turner why their stuff was more expensive for the same thing, and he said it's because they are an authroized BMW part dealer, so you get a garuntee or warrenty or something like that.