“What is the inside and outside diameter of these rings? The outside is the most important for me.”

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• I didn’t measure them. They worked great in my Lancer though. Wish they were 3/4 height though, even a full inch. There would be less sound loss into the door panel and more into the cabin of the car. Found a great product online to solve that issue. An 8 inch foam foam ring that slips around speaker and directs sound into cabin. If you have space issues, and have the time, make your own spacers out of MDF with a jigsaw. I’m eventually going to do this. These spacers I got just for time purposes.

  Answered by BeeRye 6 years ago

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• It’s the same thickness as my speakers wall

  Answered by Saito4937 6 years ago

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