Description of Wagner QuickStop ZX986 Semi Metallic Disc
RESTORES LIKE-NEW BRAKING PERFORMANCE -- OE fit and form design delivers consistent, even braking throughout the life of the brake pad. REDUCED VIBRATION -- Application-specific design reduces noise-causing vibration. EVEN PERFORMANCE -- Engineered for consistent braking throughout the life of the pad. APPLICATION-SPECIFIC MATERIALS - Formulated to meet the unique needs of each vehicle application. HARDWARE INCLUDED - Premium stainless-steel hardware and OE-style lubricant included in most applications. COMPREHENSIVE COVERAGE -- Brake pads available for all vehicle types. ZERO COPPER FORMULATION -- Features Wagner OE25 zero-copper friction formulation. Designed, tested and certified in the USA by Federal-Mogul engineers. 100 percent OE post-curing process ensures even friction performance throughout the life of the pad. OE matched friction formulations and configuration to restore like new braking performance. Application specific shims to reduce noise causing vibration. Asbestos-free material.
These semi-metallic discs have significantly increased the stopping power of my automotive. They have a great pedal feel and quiet operation. Install was a breeze and the price is unbeatable. The only downside is that they produce more dust than my previous pads, but it's a small trade-off for the incredible performance.
Pros
Excellent stopping power and reduced brake dust compared to organic brake pads.
Cons
Prolonged use of these brake pads can produce noise during braking.
These pads were easy to install on a 2009 Mercedes E350 with AMG Sport Package. They were instantly quiet and had good stopping power. It was for the rear brake. They've been working for a week now and seem to be working fine. They come with anti-squeak clamps and a squeak-preventing grease pack. The pairs were identical and had room for the wear sensor needed on the passenger side.
I installed ThermoQuiet semi metal pads front and rear on my 03 S430 without changing the rotors just the surface of the rotor with sandpaper of the grit 220 ground . After 300 km of driving I can only say WOW! These pillows are amazing! Best bite, best stopping power, absolutely noiseless and almost lightfast. There also seems to be less brake dust, but time will tell. These should be original pads, not the Jurid or Textar used by Mercedes. For the price they can't be beat!