The BR3 work--once or twice-- then fade badly. I like to go fast and need to be able to stop more than once! The BR3 has tiny 12.6" vented front rotors with a single piston caliper. The rears are 12.6" solid (.4" thick) rotors. Once they get hot you're not going to stop...
BR5 is the standard on SXT Black Top/Rallye with 20" wheels and the regular R/T's: 13.6" vented front rotors with dual piston calipers, rears are 12.6" vented rotors...a much better brake system that is fine for everyday driving.
The BR9 Police brakes use massive 14.5" vented front rotors with huge two piston calipers, the rears are 13.8" vented rotors. This package has twice the braking power of the BR3 and I haven't been able to get them to fade at all.This setup has better braking power than the 4 piston Brembo package (nowhere close to the SRT 6 piston calipers though).
here are some good comparison pics of the rear rotors and the last is the BR9 front compared to the BR3. If you look closely at the little front rotor you can see discolored spots from overheating (it is called "cementite" because these spots turn super hard and if it keeps getting worse it renders the rotor useless):Attached Thumbnails