Ford Mustang Forum - View Single Post - 2013 Mustang GT with stock then GT500 Mufflers
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post #26 of (permalink) Old 11-16-2015
zinc03svt
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Joined: Jul 2014
Location: Springfield
Posts: 232
 
Oem and gt500's are chambered non packing mufflers. Straight through designed mufflers are ideal for flow. I'm running ORX with these race bullets in T304.

Surprisingly not bad for fairly open exhaust. Nice pick up in power over 5k rpms with my CJ setup versus the oem mufflers. I would have gone gt500 if they had not almost doubled the price on them. Bought these shipped for 270.
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2014 GT Cobra Jet California Special
Auto, Oxford White, comfort pkg.
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