[GQ4Life]

Do they work? Are they needed?
Should I have dealer install?

 

[glen e]

no....they are to be installed at track and taken offf at track...

 

[Chip]

They are designed for track use, and track use only. They modify the air flow through the rotors. You don't want to leave them on full time. Installment requires that all the wheels be removed, the cooling rings be attached and safety wired in place, followed by the re-installment of all the the wheels. A fair amount of work...

 

[GQ4Life]

Oh ok. Thanks. Appreciate it.. prob keep brakes too cold for street