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2011-2014 Mustangs
Exhaust
“Mystery Mufflers” versus Roush Axle Backs- Video Comparison
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<blockquote data-quote="matt5058" data-source="post: 16394638" data-attributes="member: 164345"><p>So after driving around with the mystery mufflers for a couple of days, here's my take - the mystery mufflers are a little bit quieter at idle but a little bit deeper at low speeds than the Roush. At cruising speeds, they are as loud as the Roush with no backfire/snap, crackle, pop, which makes it easier to focus on the drone (of which there is a LOT, especially cruising along at 50+ in 5th gear. If there was an easy way to add those tips to the Roush, I'd do that. </p><p></p><p>For shits and giggles, I actually just put the stock mufflers on today for the first time in almost six years. My wife couldn't believe how quiet it is. Felt like we were driving around in a hybrid. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick Out Tongue :p" loading="lazy" data-shortname=":p" /></p><p></p><p>I will probably keep these on for a little bit just to enjoy some quiet cruising. It actually made me wonder if I really should consider trying to sell both the mystery mufflers and the Roush ABs and then getting the GT500 axle backs. Might be a nice middle ground.</p></blockquote><p></p>
[QUOTE="matt5058, post: 16394638, member: 164345"] So after driving around with the mystery mufflers for a couple of days, here's my take - the mystery mufflers are a little bit quieter at idle but a little bit deeper at low speeds than the Roush. At cruising speeds, they are as loud as the Roush with no backfire/snap, crackle, pop, which makes it easier to focus on the drone (of which there is a LOT, especially cruising along at 50+ in 5th gear. If there was an easy way to add those tips to the Roush, I'd do that. For shits and giggles, I actually just put the stock mufflers on today for the first time in almost six years. My wife couldn't believe how quiet it is. Felt like we were driving around in a hybrid. :p I will probably keep these on for a little bit just to enjoy some quiet cruising. It actually made me wonder if I really should consider trying to sell both the mystery mufflers and the Roush ABs and then getting the GT500 axle backs. Might be a nice middle ground. [/QUOTE]
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Exhaust
“Mystery Mufflers” versus Roush Axle Backs- Video Comparison
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