Anyone got any thoughts on these? Cheap and nasty is coming to mind but its only for the commuting car, its a DCI 80 and would like a bit more poke 
Performance Box RaceChip Pro Renault Clio II 1.5 dCi 82bhp Tuning
http://bit.ly/YBT3Re
Performance Box RaceChip Pro Renault Clio II 1.5 dCi 82bhp Tuning
http://bit.ly/YBT3Re