The Hawk HPS Street rear brake pad (MPN HB615F.535) is a street-focused friction pad from Hawk Performance, listed for the Mitsubishi Lancer Evolution X. It is meant for owners who want firmer, more consistent stopping on daily and spirited road driving than they get from stock pads. The manufacturer warns that new pads can take up to 200 miles to fully bed in, so that break-in should be treated as part of the purchase. Owners on user forums have reported that skipping a proper bed-in can cause brake judder, which is a common reason a pad upgrade feels disappointing.
Searches for this part typically include terms like Evo X HPS street rear pad, Hawk HB615F.535 bed-in, and Evo X rear brake pad replacement. Rear pad swaps on the Evo X are a manageable driveway job. The retainer pins should stand about 1 mm proud of the outer caliper face once reinstalled, and a breaker bar is useful for the large caliper bolts. Hawk directs installers to the vehicle manufacturer's application-specific instructions, so follow those for torque and sequence.
The manufacturer states that new pads can take up to 200 miles to fully bed in, and recommends a specific stop sequence followed by a 15-minute cool-down before normal driving.
Owners on user forums report that an incomplete bed-in can leave uneven pad deposits on the rotor, which can cause pedal judder.
Owners on user forums describe the Evo X rear pad change as a straightforward job for a home mechanic with jack stands, a torque wrench, and a breaker bar. Expect to slide the caliper off the rotor, compress the piston with a C-clamp, and reinstall the retainer pins so they sit about 1 mm proud of the caliper face. Common gotchas include leaving the caliper bolts too loose to slide the pads, and skipping the bed-in drive afterward. Hawk recommends following the vehicle manufacturer's application-specific instructions, and recommends a 15-minute cool-down after the bed-in stops.
