Demon Tweeks,
Part No: ABCR-300, P112 of their 2002 Tuning & Performance Equip catalogue (-310s are smoked black)
These come with the amber bulbs. You have to snip off two of the plastic webs on each repeater ( I used a small pair of electronics lead cutters) to allow them to seat in properly as the 172 wing has an assymetrical hole (square at top and round bottom ...or other way round ...cant remember) make sure you clip these webs right down to the flat surface at the rear of the repeater body otherwise they wont sit flush. They are held in with metal spring clips. Once theyre in theres no return, short of removing the inner wing!!