Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - Front Rotor Specs

jamal · 09-02-2012, 04:14 PM

Well they are close enough that I usually consider them the same thing, especially when you are looking for aftermarket parts. Subaru does have both sizes, with the 294mm rotors going on the WRX and 292mm rotors going on the Legacy. There are some slight differences in construction between the two (Legacy rotors have a little more material in the disc) but they are interchangeable. I think Stoptech/centric is the only aftermarket company that distinguishes between the two: The 294mm wrx rotor is 12x.47018 while the legacy uses 12x.47021

As you can see, not very different although the 021 rotor is heavier. If you are looking to buy some stoptech/centric rotors, most places are going to only have the wrx parts in stock and I'm not sure if they make as many variations of the Legacy rotor (drilled/slotted/125 material etc).

Also I just updated that post linked to add some more BRZ/FRS info.

09-02-2012, 04:14 PM	#9
jamal Senior Member Join Date: Nov 2011 Drives: Legacy GT Location: compton Posts: 534 Thanks: 9 Thanked 368 Times in 206 Posts Mentioned: 11 Post(s)	Well they are close enough that I usually consider them the same thing, especially when you are looking for aftermarket parts. Subaru does have both sizes, with the 294mm rotors going on the WRX and 292mm rotors going on the Legacy. There are some slight differences in construction between the two (Legacy rotors have a little more material in the disc) but they are interchangeable. I think Stoptech/centric is the only aftermarket company that distinguishes between the two: The 294mm wrx rotor is 12x.47018 while the legacy uses 12x.47021 As you can see, not very different although the 021 rotor is heavier. If you are looking to buy some stoptech/centric rotors, most places are going to only have the wrx parts in stock and I'm not sure if they make as many variations of the Legacy rotor (drilled/slotted/125 material etc). Also I just updated that post linked to add some more BRZ/FRS info.