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Do Flowmasters get louder with time?

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My car had Flowmasters “Force II” exhaust- which consisted of their Super 44 mufflers and Flowmasters own resonators.

Today I had the Super 44’s replaced with their Super 10 series. Tiny little single chamber mufflers that are supposed to be really loud.

Honestly, they are QUIETER than the Super 44’s I took off. Either that or I am losing my mind - and I’ve been accused of that before.

My only thought was that the Super 44’s have been on there for several years and are worn in/worn out and had gotten louder - and the Super 10’s are brand new.

That being said, I can’t imagine how or why Flowmaster mufflers would get louder with time since they are just metal baffles in there - no fiberglass packing to burn out or anything. 🤷🏻‍♂️
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2016 R/T Scat Pack
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I put the Force II kit on my 2010 R/T before the first 1000 miles. It sounded the same at 163k miles. My Chevy pickup with a 5.3 and a 10 series muffler is louder.
 

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2010 R/T Classic 6M
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1,367 Posts
They dont use any muffler packing, so no. It's basically a hollow case with v's welded in to direct the gas around. Super 10s should be louder than 44s but not by that much from what I've heard, but I haven't seen a comparison of both on the same exact car. You probably just lost some hearing from the 44s lol
 
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