when i had dual exhaust, i went with a 2.25" pipe instead of a 2.5" to avoid that.
That still come out to 4.5 in pipe still to much for a 5.3 anything over 3in and you lose back pressure
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when i had dual exhaust, i went with a 2.25" pipe instead of a 2.5" to avoid that.
Which 50 Series exactly is in the video Yuke2k (I know its not your truck, just figured you might know)? Flowmaster has different mufflers under its 50 series c ategory. Nothing labled "regular" For example: 50 Series HD, 50 Series Delta Flow, 50 Series SUV Performance, and 50 Series Big Block.