well there is 4 type brackets on clucth & brake pedal which bolt up,excelerater has plate which clamps to orig pedal then 4 bolts secure new pedal to the plate, check it regular when i clean car weekly but have had no reason to re-tighten since fitting about 3mths back and been in to fiat for service with these fittednice set there, how secure are they my only concern is them moving or falling off and obstructing a pedal