I have Hawk Hp+ pads, cross-drilled Brembo rotors and recently i change my DOT 3 brake fluid for a DOT 4 fluid... jeeez.. Now it's braking very very hard... i locked my wheels during the first road test... The sound is annoying but i don't care as long as i can stop. Because my Hp+ pads are made of carbon, when they're cold, the brake power is not very good but after 1 or 2 braking, it's stopping!