Mate, From the different types I have had on my previous clios I would highly recommend going for either Scorpion or Magnex, Now Ive said it already. Had a powerflow on my 1.2 sport to start with though and it was fine, just dont think it sounded as nice as the scorpion. Just make sure if you go for the powerflow exhausts you go and have the bolts tightened every couple of days for the first week, because the exhaust move alot from the heat when they are new, shrink a little etc. Mine did it in the first day!!