Wagner ThermoQuiet QC465A Ceramic Disc Brake Pad Set

IMI stands for Integrally Molded Insulator. Wagner molds the noise insulator directly into the backing plate as a single piece, rather than bonding a separate shim to the back of the pad. The goal is to reduce the vibration transfer that causes brake squeal. It replaces the separate adhesive shim used in conventional pad designs.

Yes. Wagner calls out its OE25 formula as a zero-copper friction formulation. Copper and other heavy metals in brake-wear dust contribute to roadway runoff and aquatic-metal loading, which is why California and Washington have enacted the Better Brakes laws to phase them out. The OE25 formula addresses that concern.

Premium stainless steel hardware (abutment clips) is included for select applications. Wagner's feature description notes 'for select applications,' meaning hardware is not guaranteed for every vehicle in the fitment range. Confirm your specific application includes hardware before planning your brake job.

No. Wagner does not publish the SAE J866 friction edge code for the ThermoQuiet QC465A on the product listing or the manufacturer's website. The edge code, which tells you the cold and hot friction coefficients, is not disclosed. This is why friction-spec compliance is scored conservatively: the ceramic compound class matches a standard daily-driver brake package, but the edge code cannot be independently confirmed.

The Amazon listing for Wagner ThermoQuiet QC465A Ceramic Disc Brake Pad Set carries a California Prop 65 warning. California requires this warning on a very wide range of manufactured goods — including rubber, vinyl, plastic, and metal automotive parts — whenever trace exposure to any of roughly 900 listed substances (commonly phthalates or heavy metals) is possible, regardless of whether the specific product poses a meaningful health risk. As a passive accessory, Wagner ThermoQuiet QC465A Ceramic Disc Brake Pad Set has no Safety Data Sheet, so there's no chemistry breakdown to translate beyond that.