Mufflex 4 inch Exhaust on LS Swapped third gen Camaro.
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Installing the mufflex 4 inch catback exhaust system on my 1985 LS3/T56 swapped IrocZ third gen Camaro. After running it on the dyno at street machines nationals I quickly found out I outgrew my single 3 inch exhaust. @magnaflowtv @Scwoodsy @umiperformance