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View Full Version : Knock Muffs?


Tris
03-02-06, 12:33 PM
Stepson got his Nissan GTIiR rolling roaded the other week and his APEX computer now says the engine is knocking/detonation in certain conditions (140mph + full throttle :D )

To give the company thier due they have told him to bring the car back and they'll sort it. They said they had checked for knock/detonation using knock muffs

So the question is what are knock muffs and how do they do what they do?

Tris