It's technically possible to install or retrofit a vehicle with anti-lock brakes, but it doesn't make sense if your only goal is to lower your premium. The reason is that installation costs alone make this project one for home mechanics. The parts can reach $3,000, with most people paying an average of $2,000. Some of these costs will depend on whether the equipment is new or used. The cost to install an anti-lock brakes on a car could equal the grand you spent on a control module and four-wheel speed sensors. If that seems expensive, you're right. Simply swapping old parts for new ones wouldn't take much labor. But if you want to add an ABS to an older car without modern, fancy electronics, it requires more time and effort from your mechanic than you can save on auto insurance.