DIY Video on how to replace front brake pads, rotors and upgraded calipers. Procedure is similar for many makes and models of vehicles.
The procedure demonstrates a front brake upgrade from a 1999-2003 Toyota Solara (same as 1997-2001 Camry) V6 with ABS to calipers, pads and caliper brackets from a 1994-1996 Camry V6 with ABS (or Lexus ES300 or 1995-1997 Toyota Avalon). The calipers on the older Camry were dual piston and had a much larger pad area, supposedly helping with high speed braking.
The caliper upgrade will clear stock 15" wheels or larger.
Once the vehicle is jacked up and the wheel removed, two 14mm slider bolts can be removed to remove the caliper from its bracket. From there, two 17mm caliper bracket bolts can be unbolted from the steering knuckle, freeing the bracket and pads.
Pads should be replaced when the pad thickness is roughly equal to the backing plate thickness. Apply anti-seize to any area where there is metal to metal contact, such as where the pads contact the pad clips in the caliper bracket.
Replacing the caliper is as simple as unbolting the Banjo bolt (14mm) and bolting the brake line to the new caliper.
Rotors should be replaced when the run-out becomes excessive (as measured by a dial indicator), warped or rusted. The surface should at least be scored, sanded or machined prior to just replacing pads.
Overall the brake feel is still soft in the beginning of pedal travel but the braking force is much more than the single piston calipers once the brake pedal is depressed with more force.
Make sure the pads are bedded into the rotors by gently stopping the vehicle a few times to allow the new pad to evenly coat the rotor, preventing vibration.