Hello, i ve justed registered, i drive a Clio 172 Cup and wondered if anyone knows anything about Obisound exhausts. I think they are fitted to the Cup racers but when i spoke to R Sport a while a go they said they are not for sale- problems with the lamda sensors on the cat. Also are the Viper induction systems worth the money or is a replacement K&N panel filter / cone as good. P.s i take it Renault are not going to release any performance modifications? P.P.s i see that LAD conversions are getting a lot of stick. Car and car conversions reviewed it not to long ago and rated it as their second best modified hot hatch.