The Clio's standard wastegate actuator provides a relatively weak boost curve, with slow boost build up, and it fails to hold closed as the revs rise, causing a drop-off at the top end. Turbosmart's IWG-75 for the Clio RS is performance-focused: it has stiffer actuator springs and a larger diaphragm ...mere

The Renault Megane RS250 Internal Wastegate Actuator (IWG) provides better turbo response and greater sensitivity when managing boost pressures. Designed as a direct bolt-on replacement for the factory part, the Megane RS250 IWG is easy to install and requires no special tools or fabrication. FEATUR ...mere