hello I have intention to maximize the rs to run on circuits. now I have an adjustable suspension and shorter springs. exhaust and air filter straight conical green. when removing the head I found that the intake manifold is a bit smaller than the entry into the stock. you know if the intake manifold clio 172 is larger than the twingo rs? admission there is a larger butterfly? in Spain there is not much information and sport renault technicians say nothing ......