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2 chamber muffler choices
#11
(05-15-2019, 09:35 AM)turtle5353 Wrote: I just added Flowmaster FX mufflers to the 71 I did. It sounds good without any drone when driving.  

<iframe width="560" height="315" src="https://www.youtube.com/embed/xFQQN--nU4w" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
Thanks for the clip. Sounds a bit like what I have on already - I guess it's an oem style system - would like a bit more rumble really
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#12
Thanks for the Hooker aerochamber suggestion. I'd not heard of those before. Seems like a unique design, well made and no dearer than flowmasters. Great sound too. I presume an oem style h-pipe and the intermediate/post muffler pipes should hook up readily and mean a reasonable fit? Have to weld hangers on by the looks? I'd aim to fit the system myself but don't have any pipe bending skills or equipment so hopefully not too much fettling would be required.
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#13
(05-15-2019, 05:43 PM)mustangandy Wrote: Thanks for the Hooker aerochamber suggestion. I'd not heard of those before. Seems like a unique design, well made and no dearer than flowmasters. Great sound too. I presume an oem style h-pipe and the intermediate/post muffler pipes should hook up readily and mean a reasonable fit? Have to weld hangers on by the looks? I'd aim to fit the system myself but don't have any pipe bending skills or equipment so hopefully not too much fettling would be required.

All Mustangs 65-73 use a muffler configuration known as "offset inlet - center outlet", such as the Aerochamber # 21501HKR, which is 2 1/4", or 21502HKR for 2 1/2". They should be a near-direct replacement for a factory muffler. You'll have to use a universal hanger on the outlet pipe, or weld on the factory style brackets. 

The sound is smooth and deep. My personal experience is with a friend's 70 Road Runner with a 400. He had Flowmaster 40s on it with dumps at the rear axle and you couldn't hear yourself think on the highway. He swapped out to Aerochambers, still with dumps, and the car was totally changed. It was still loud inside, but you could carry on a conversation at normal voice levels and that tinny, raspy Flowmaster sound was gone.


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#14
Thanks for the additional info Hemi. I think I'll work up my exhaust with the aero chambers for sure.
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