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Mustang Forums
2011-2014 Mustangs
Exhaust
Anybody know how restrictive the stock mufflers are?
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<blockquote data-quote="manolith" data-source="post: 13795462" data-attributes="member: 123563"><p>i made 620rwhp thru the stock mufflers with an offroad xpipe at 8.5psi of boost with only 14 degrees of timing.</p></blockquote><p></p>
[QUOTE="manolith, post: 13795462, member: 123563"] i made 620rwhp thru the stock mufflers with an offroad xpipe at 8.5psi of boost with only 14 degrees of timing. [/QUOTE]
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Mustang Forums
2011-2014 Mustangs
Exhaust
Anybody know how restrictive the stock mufflers are?
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