The amber indicator repeaters really jar against the basic car colour and the 'silver' items such as wheels and lights. These silver repeaters cure that, and add superbly to the appearance of the car. They're easy to fit, although the bulb holders can be a little tricky to 'bayonet' into the units - just make sure you understand exactly how they fit, then push hard to close the rubber seal and enable the bulb holder to be turned properly home. Remove the old repeater units simply by pushing them forward slightly against their retaining springs, then gently pull out. Pull the connectors off the terminals - the length of wire on my car was not over generous so hang on to the wires - take the opportunity to clean the terminals if there's any sign of corrosion, connect up then simply push the new units into place and slide them backwards a tad. Stand back and admire!