Standard Megane 225 injectors, covered ~84k miles (135000 km), worked ok but I think that cleaning them would be a good idea. Replaced due to check injection error but it was boost control solenoid's fault. £20 + £4 postage
These still up for sale. I'm having the same fault come up.on my dash when the cars under load in 5th & 6th gear
I had same error mate first time was one of the map sensors and then a few months later was boost solenoid
Easy peasy. Unscrew the fuel rail and take it off and you will have the injectors. Type "megane rs boost solenoid" in google images and you will find it.