Please be aware HP2 pads are a performance pad compound and will perform differently from original brake pads in different conditions as per Brembo's blurb below:

HP2 brake pads offer outstanding cold performance a good bite, superior fading resistance, and friction stability in all conditions and low dust levels. Thanks to the friction material, they provide significant advantages over their competitors. Designed to be interchangeable with original equipment brake pads (OE), they are approved to ECE-R90.