Review on 🔊 Flowmaster 853548 Super 40 Series Muffler: Efficient Performance and Enhanced Sound Control by Andrew Davenport

Name: 🔊 Flowmaster 853548 Super 40 Series Muffler: Efficient Performance and Enhanced Sound Control
Item: 🔊 Flowmaster 853548 Super 40 Series Muffler: Efficient Performance and Enhanced Sound Control
Rating: 4

September 14, 2022

Nice but too loud for me.

My 2021 Silverado HD 6.6L was equipped with Super 40. Sounds great at idle, but there's a lot of cabin rumble at times. So be careful, if you like a quiet cabin this is NOT for you. It softens around 70 mph, but between 35 and 50 mph it can make a lot of noise in the cabin. To edit. I ended up replacing it with an HD 50 series and it has enough noise cancellation to be able to talk in the booth. If you have a heavy truck I would choose the 50 Series HD over the Super 40.

Pros

Excellent overall performance

Cons

Not everything fits

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