Wilwood PolyMatrix Pad Set - 6617 E W6A /W4A AERO 4/6 (.670in Thk)

This is a Wilwood PolyMatrix E-Compound brake pad set, specifically designed for W6A and W4A Aero 4 and 6-piston calipers. These pads have a thickness of .670 inches, which is a common size for these performance calipers. The PolyMatrix E-Compound is known for its ability to handle high temperatures without significant fade, making it a solid choice for track day use or aggressive street driving where consistent stopping power is crucial.

Wilwood developed the PolyMatrix line to offer a range of compounds that balance street manners with track performance. The E-Compound, in particular, is formulated to provide strong initial bite and a reliable pedal feel even under heavy braking. Because these are performance pads, you can expect them to work best when paired with compatible high-performance rotors and brake fluid to get the most out of your braking system. They are a well-built option for drivers looking to improve their car's stopping capability beyond stock levels.