In reply to Keith Tanner :
Why are we holding RA more responsible for manufacturer and supplier errors than anybody else? Is their offering more products from more sources than pretty much any of the competition, such that when there is bad data there is more of it, really just cause?
Looking at RA, they (incorrectly) list the Brembo 08685710 rear rotor as being for any Miata 'with normal suspension' from 2001-2005 cars, in addition to all 1994-2000. You and I both know that didn't apply in 2003-2005 though.
However, if I go over to NAPA, they too show the Brembo 08685710 'with normal suspension' and Brembo 08c13511 'w/ hard suspension, w/ sport suspension' as BOTH being being 'guaranteed to fit' on any 2003-2005 Base, LS, or SE Miata. Same problem, different (more reputable?) site, and they haven't fixed it yet either. Nor has O'Reilly, nor Autozone, etc...
I'll bet you that any parts warehouse type sites selling these Brembo rotors have the exact same problem. How can that be? It's because none of those sites maintains their own specifications and applications database. They simply rely on the data that their suppliers provide them. RockAuto simply publishes more of the provided specs for each product than anybody else. I doubt any of them could have the resources to do otherwise though. Why do I say that? Go directly to the Brembo site... Brembo themselves also still show 08685710 as being for all 2001-2005 Miatas 'with normal suspension' and 08C13511 as being for all 2001-2005 Miatas 'with hard suspension option, with sport suspension'. So is RA really to blame for having the same uncorrected 20+ year old BREMBO error that your FLAPS will have?
Obviously from the RA list, numerous other manufacturers of NA/NB rear rotors have supplied similarly erroneous data. RA can't make them correct that any more than any of the other resellers have. You won't see this problem with the Centric rotors on RA though, because they happen to be listed correctly by the manufacturer in this particular instance.
The real problem with RA in this example is when it comes to returns for supplier listing errors, according to their policy the manufacturer has to confirm that their catalog information (provided by said manufacturer) is incorrect... Which I'm guessing is not likely to happen from just a 'Hi Brembo, we have a customer who says you've had this listed wrong for 20+ years. Have you?" This is where your FLAPS, and even Amazon, definitely do better.