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How Big Is the Difference Before After the Race Exhaust?

We fitted a Supersprint Race rear exhaust to our S54-powered Z3M Coupe to open up the sound and give the car a more ...
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How Different Are These Two V8 Exhaust Notes?

This video features a sound battle between the Mercedes C63 AMG and the Mercedes E500 V8 Biturbo. The naturally aspirated V8 ...