Fluttering from exhaust on decel

[ponyboy0123]

I just put an xpipe on my car last week and ever since then I’ve noticed a fluttering type noise on deceleration. I’ve checked that all clamps are tight and nothings loose, all hangers are secure, there’s nothing rattling around inside of the pipes. I’m at a loss for what it could be so I’m taking it to ford tomorrow. If you put your ear up to the muffler you can hear it coming from inside each muffler.

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[KingKona]

....I’m taking it to ford tomorrow......

They're just gonna tell you to put the stock exhaust back on, and charge you $500.

 

[Free Spirit]

I just put an xpipe on my car last week and ever since then I’ve noticed a fluttering type noise on deceleration. I’ve checked that all clamps are tight and nothings loose, all hangers are secure, there’s nothing rattling around inside of the pipes. I’m at a loss for what it could be so I’m taking it to ford tomorrow. If you put your ear up to the muffler you can hear it coming from inside each muffler.

Did you ever find out the cause of this? My 17 is doing the same thing but it's insanely loud while driving/decel

 

[joe603]

Not hearing anything out of the ordinary??

 

[rickytan05]

Sounds like your exhaust is half open so you have an active exhaust? What mode do you experience the flutter sound in? I have a 2019 ford mustang gt with active exhaust in normal mode it does the noise your experiencing but when I’m in sport or track it’s fully open…

 

[TonyNJ]

It sounds fine.

 

[17MagMetal]

Sounds good to me - x pipes are just rowdy/noisy.

Though maybe I’m missing the noise in your video.

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