Cone filter, great noise and cheap.
Done
Sorry but i am not a fan of a cone filter because of the heat soak
Maybe have a look at the s1600 kit that Renault produced
Think they were producing around 220 Bhp so should be a decent mod but not cheap
have a look in here for some ideas
http://www.cliosport.net/forum/show...6v-K4M-power-HELP!!&highlight=Super+1600+clio