The Wilwood 150-40-7816K is a BP-40 high-temperature racing pad set cut to Wilwood's 7816 pad plate, the shape used by narrow Dynalite-style four-piston calipers. The manufacturer describes the BP-40 compound as high friction with an aggressive initial bite, good low-temperature response, low wear during sustained high-heat braking, and high heat fade resistance. That mix is what keeps pedal feel consistent through repeated hard stops on a road course, oval, or dirt track, which is the case for paying more than a generic pad. Wilwood lists these as racing-only pads, not for street use, so this is a dedicated race-car or track-day upgrade rather than a daily-driver swap. Search terms: BP-40 7816 race brake pads, narrow Dynalite brake pads, high-temp road course pads.
Verify fitment before you order. The manufacturer's caliper listing for its Billet Narrow Dynalite radial-mount calipers specifies the 7816 pad type, and the 7816 shape is the one used on Narrow Dynalite and select DynaPro calipers. Confirm your caliper's plate number with the manufacturer if you run an uncommon variant. On the rotor side, the manufacturer's literature describes predictable, linear response with excellent modulation on iron and titanium rotors, and long wear with iron and steel. Bedding is the step most often skipped. Wilwood's procedure calls for controlled heat cycles because hard service from the first stop can cause fractures, and blocking brake cooling ducts speeds the process. Owners on user forums have reported rotor ridging after track sessions and tie it to overheated pads, so follow the bedding steps closely.
The manufacturer lists these as racing-only pads, not for street use. Its guidance also warns against using high-temperature race pads for low to medium temperature driving on the street.
Yes. The manufacturer's bedding steps call for controlled heat cycles before hard use. It also offers factory dyno-bedding for many of its competition pads, which can save track time.
The manufacturer's caliper listing for Billet Narrow Dynalite radial-mount calipers specifies the 7816 pad type. Confirm the plate number for any other caliper model with the manufacturer before ordering.
Swapping the pads is a straightforward caliper job for a home mechanic, but proper bedding requires access to a safe track or road course. Wilwood's install sheets for other calipers call for removing the center bridge retainer bolt before inserting the pads with the friction material facing the rotor, then checking that the pad top sits flush with the rotor's outer diameter and adding or removing shims if it does not. Keep brake fluid away from the pad and rotor contact surfaces, and use a catch bottle when bleeding. The manufacturer recommends Wilwood Hi-Temp 570 fluid or higher. After bedding, the rotor should show an even, burnished finish across the whole contact face. Avoid sitting stopped with the pedal held down or applying the parking brake during bedding.
