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10/10ths · 06-09-2022, 03:45 AM

……is part of the harmonic balance of the entire drivetrain.

If you switch to a twin tube muffler, the interior drone will appear.

The only foolproof muffler that gives good sound, but not “Fast & Furious” levels of sound, and does not drone on the highway, is the FVD Brombacher “Sound Version” muffler.

BUT, it’s super, stupid expensive.

06-09-2022, 03:45 AM	#8
10/10ths "50 Years of 550 Spyder" Join Date: Jun 2015 Location: The Road Posts: 956	The factory muffler…. ……is part of the harmonic balance of the entire drivetrain. If you switch to a twin tube muffler, the interior drone will appear. The only foolproof muffler that gives good sound, but not “Fast & Furious” levels of sound, and does not drone on the highway, is the FVD Brombacher “Sound Version” muffler. BUT, it’s super, stupid expensive. __________________ 550 SE #310---"It's more fun to drive a slow car fast, than a fast car slow."