Last edited by t500hps; 04-14-2021 at 08:56 PM.
The 99 is the standard hardware and the 87 is the race hardware.
-Michael Mosty
CMC #11 Mosty Brothers' Racing
Director - TX Region
I usually go four years on a set of rings. That is five to six events per year. The rings have never failed (cracked other than just small surface cracks) but I worry about them around four years 20-24 race weekends.
JJ
I've been running Corvette calipers and parts store rotors since 2013. I don't expect any increase in performance aside from consistency and not worrying about rotors cracking. I go through 2 sets a season on the parts store rotors.
RM CMC Director
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