Day: 14

Mailbag: Which Muffler Design is Louder – Two- or Three-Chambers?

You’ve got questions, we’ve got answers. We work with the Summit Racing tech department to help you tackle your auto-related conundrums. In this week’s Mailbag, we’re discussing two-chamber vs. three-chamber mufflers, and which produces the loudest exhaust notes. Q: I have a 1989 Ford Mustang GT. The car has some upgrades like underdrive pulleys, ignition and coil, and

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