thats what the "rpm gauge" is called... or are you talking about the external fast and the furious style ones? in which case they are used for a higher redline than what you would have on your cluster...
X2^ Tachometer is in your cluster. There are tach's that mount on dash that are just used for redlines when the engine is not normally used with that car. Or it is modded engine.
X2^ Tachometer is in your cluster. There are tach's that mount on dash that are just used for redlines when the engine is not normally used with that car. Or it is modded engine.