Originally Posted by Solracer
Wrong answer, all pads need to to bedded in espically if you are not changing rotors and even with new rotors. You need to transfer some material from the pads to the rotors to get the pads to "grip" the rotors, With AEM and or auto-zone type pads I generally do a few 50 to 20 stops, and then drive around to let them cool. If I am using Carbotech , cobalt or hawk pads I follow the break in procedures they include with thier pads.
The answer I got from AEM was different. Hawks specifically come with instructions on how to bed-in the pads. AEMs don't. I deleted the email long ago, but AEMs do not need bedding in because they are a street pad. Hawks are more a racing compound. So yes Hawks and Carbotech need this procedure.
Material doesn't get "transferred onto the rotor" you are trying to get the rust-proof coating off the rotors and groove the pads to the rotors or if you will groove the rotor to the pads. Sort of like mashing peanut butter and jelly together on bread.
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