WINMAX W3 Compound: Semi-metallic Friction: 0.34 – 0.37µ Temp range: 0 – 600degC Extreme Performance Street / Trackday Pad Performance pads, low level Motorsport. By far the most popular high performance cross-over brake pad on today's market, WinmaX W3 brake pads are a semi-steel-based compound suitable for regular high-performance driving and club level competition such as track day, drag, hill runs and more. Semi-metallic properties mean this pad is popular for those looking to upgrade to exceptional performance without compromising too much comfort. A high initial bite from low temperatures right through to 650 ? gives your car next-level performance and feel on the street and the track. This pad is ideal for: High Performance Street Use Track Days, Hill Climbs, Rally Serious enthusiast driving Why buy this product? Designed for use in application where low temperature friction is required Very high levels of modulation Excellent all-round brake pad suitable for daily street use in high performance applications. Works instantly from ambient temperatures Provides long lasting pad life and rotor wear. What you get: 1 part number = 1 set of pads. In most cases this is 4 pads per box. If your calipers take more than 2 pads per caliper (E.g Audi RS4), the part number you buy will include all the pads you need to service the axle set of calipers. Also included is bedding instructions to help you get the most out of your new pads. Brake pad product notes: Shims and Wear sensors Our brake pad products are designed for high performance and competition use. Therefore, we do not always provide ancillary parts such as wear sensors or anti-squeal shims on some of the WinmaX and CIRCO range. Ancillary parts are provided in some cases depending on the pad specification and fitment. Anti-Squeal shims are available for some shapes as separate items on this website. If you are unsure about any of this, please contact the us for confirmation. Fitment FRONT, REAR or UNIVERSAL? Our brake pad products are engineered to replace OEM parts with higher performance friction. Many pad shapes are designed to be installed in only front or rear. However, there are many pad shapes in the automotive world that are shared across multiple vehicle and caliper makes and models. In many cases these shapes are installed in the front on one vehicle, but the same shape is used in the rear of another. In other cases, the same pad shape is used in both front AND rear. If a brake pad is known to be used for front and/or rear, we refer to it as UNIVERSAL. If unsure about the fitment when purchasing, please check with us.