You don't need rear disc brakes. Change your front brakes to Brembo cross drilled rotors and EBC greenstuff brakepads, that should be enough braking power for you.
Agreed. Although the newest cars these days have discs on both sets, the rear does'nt have as much braking power as the front. Get a bicycle with good brakes. Get up to speed and hit the rear brakes hard. You skid out. Do it again but this time hit the front brakes hard. You fly over the handlebars. All that really matters is discs in the front. It will be costly and take time to put discs on the rear. You'll have to fool around with the master cylinder, taking off the proportional valve and whatnot. Were your brakes always not too good? If they used to be better you could have a small leak, or just need to replenish the supply.You don't need rear disc brakes. Change your front brakes to Brembo cross drilled rotors and EBC greenstuff brakepads, that should be enough braking power for you.