The Brembo 2427.18.TS20 is a rear pad set for the 2021+ BMW M4 G82/G83, built on the TS20 compound. The TS20 is the ideal dual purpose compound for street and light track use. It combines an aggressive initial bite and good heat resistance while keeping dust and noise to a minimum. Compared with race-only pads, its main advantage is livability: running a "racing use only" pad on the street could produce excessive noise and dust. Owners on user forums describe the TS20 as a quieter, cleaner option for daily driving, so it suits a street-driven M4 that sees occasional track days. Searchers looking for BMW M4 G82 rear track pads, low-dust G83 rear brake upgrades, or TS20 steel-rotor pads will find this set matches those needs.
Fitment is the first thing to confirm. User forum discussion of this pad describes it for the standard BMW steel brake setup, and says it is not meant for the optional carbon ceramic brakes, so check your car's brake hardware before ordering. Because TS20 is shaped for select OEM Brembo calipers, the fit is designed around the factory caliper rather than an aftermarket big-brake kit. Installing it yourself is manageable with the right tools, but the rear electronic parking brake adds a step that the front axle does not require.
User forum discussion of this pad states it is built for the standard steel/iron brake setup and is not intended for carbon ceramic brakes. Confirm your car's brake hardware before ordering.
Owners on user forums report that the rear electronic parking brake must be retracted before the pads can come out. Many use BimmerLink or a similar app to put the rear brakes into service mode, while others retract the parking brake motor manually.
Owners on user forums say the rear pad wear sensor is on the passenger side only. They recommend removing it from the pad before sliding the old pad out, since the wire can kink or be damaged.
Owners on user forums rate rear pad replacement on these cars as moderately difficult, mainly because of the electronic parking brake. Common tools include a 13mm socket, a 17mm open or box wrench to hold the caliper pin, Torx T-5 bits for the parking brake bracket screws, and a T-45 bit to release the parking brake. A large C-clamp or a caliper piston tool helps push the piston back. One owner reported the full job took about 30 minutes once the rear brakes were in service mode. Two gotchas: clear any brake pad wear messages only with the parking brake off, and after installation, engage and release the parking brake once to reset it, which prevents a parking brake malfunction message on the first drives. Confirm the procedure against the manufacturer's service documentation before starting.
