Before purchasing this set of Winmax brakes, the only other aftermarket pad I have tried was the Hawk HPS. I did a couple years of autocross and 2 track days on them, along with a ton of daily driving. They were fine I guess, they did their job but didn't have a noticeable difference from the OE pads. I had worn the Hawks down to 3mm right about when everyone was raving about the Winmax W3's. So I contacted a Winmax representative and let them recommend a full set for my application. They decided on the W4 pads for the front and the WRS-1 shoes for the rear.
The install for the front pads is pretty standard; use a new or resurfaced rotor, clean and lubricate the pad carrier and sliders, install the pads properly, compress caliper piston and install, then torque fasteners. I already have the stainless steel braided brake lines and flush in new DOT3 fluid annually, the car is very light so no need for the DOT4 or higher. I have another write-up HERE for installing the rear shoes if you're interested. Once your done handling the hardware its time to go out and do the bedding procedure below:
The first thing you will notice about these W4's is the bite. The W4 is designed specifically for circuit racing and has performed flawlessly for me the past 2 years, and there is still 6mm of pad left! They are by nature a more aggressive compound, so expect to see some dust, hear some noise, and only be able to use the rotors once. These pads will wear down the rotor surface creating a lip on the edge and make some squealing noises when driving on the street. Everyone that has driven my car is blown away by the braking performance, and cant believe I'm still using OE size rotors and rear drums. The Winmax brakes have showed you don't always need a BBK, but just a really good pad set. My car recently ran back-to-back sessions at Willow Springs Raceway with 2 drivers, and not one issue arose from the brakes...or anything else really. You can see the video HERE.
If you study the chart above you'll see the circuit W4 can withstand just a bit more heat than the W3, but still have a similar profile to a "sport" style pad. You can also see here that there are many other tiers you can choose from to suit your needs. I've had nothing but powerful and reliable performance from this Winmax brake system, and I fully recommend these products to everyone. Contact a dealer in your area to order a set for yourself! Check out the video below to see exactly how the pads looked after a full autocross season and a track day.