Ford Racing FR500S vs. GTB's vs. Flowmasters -

2005-2014 Mustangs Discussions on the latest S197 model Mustangs from Ford.
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Old 04-12-2012, 12:08 PM   #1
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Default Ford Racing FR500S vs. GTB's vs. Flowmasters

I currently have the Flowmaster American Thunders on my 2007 v6 and it sounds great but also has some annoying drone on the highway. Before them I had the Ford Racing GTB's but they were a little too quiet.

Are the Ford Racing FR500S mufflers a good compromise? I'd like more rumble than the GTB's but less drone than the Flowmasters.

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Old 04-12-2012, 03:37 PM   #2
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I'm very happy with them.
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