I recently put an air filter (K&N cold air) and when I start all be ok and idle 550rpm. When I shift (when I push clutch pedal) the RPM doesn't drop and UP and I need to push brake pedal and it drop... but after 15km the car smeel overheated and pretty sure that is not good. Did anybody can tell me what to do to fix it? I think that the air sensor have bad reading due to the new air filter...! I don't want to put the factory air filter... Please Help! Thanks :worship: