when changing brake pads....do u have to change the rotors too???

is brembo da best???

 

The rotors should be checked with a micrometer to see if they are in spec for thickness, and with a dial gauge to see if they are in spec for runout. If they've never been turned, it's unlikely they're too thin.

If braking action is smooth without pulsation/vibration, I just replace the pads. Otherwise, I let the local Honda dealer do the job because they can turn the rotors on the car, and this seems to give the smoothest results.

This is important on my 92 Accord because it's a major front end disassembly, and probably a visit to the machine shop to get the rotors pressed off of the hub. If anyone actually gets the things off, please, please put some antiseize on the rotor-hub mating surface! And, write Honda to tell them they should've done it in the first place! :upset:

edit:
Also, new rotors are often made of unseasoned cast iron which often warps after being installed and being exposed to heat, moisture, and stress. You might need to get new rotors turned anyway.

 

if you do decide to replace the rotors just get the Brembo blank OEM replacements. slotted and drilled rotors will eat away at your pads faster then OEM style rotors. I'd recommend upgrading your pads and get OEM rotors, or OEM style Brembo replacments. AEM Nissin pads are a good pad and they don't produce a lot of dust so you don't have to clean your wheels quite as much as other pads.

 

Take a look at all of the exotics and high performance cars coming out of the manufacturers. Check the brake systems being used and that'll tell you how good Brembos are