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Exhaust 5.7 HEMI Exhaust Discussion


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  #1  
Old 05-23-2011, 01:38 PM
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Just curious what yall are running after your headers, most of them have 3" collectors, are you guys running the y pipe? And going 3" all the way back in a single? Or 3" to dual 2.25 outs? Hows your performance? Just seeing whats out there....Im looking to take this project on over the weekend
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Old 05-23-2011, 01:41 PM
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by the way my current set up is a single 3" straight pipe after the cats, and I absolutely love how it sounds...and since I only have one cutout on the side of the bee body kit, what do yall think of runnin a 3" straight all the way back from the headers?? too little back pressure? too much back pressure?
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Old 05-26-2011, 06:25 AM
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OMG!!! thanks for all the input, its all so clear now!!! wow amazing.......
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Old 05-26-2011, 06:38 AM
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there's numerous threads about what size to use for backpressure...running single 3" is fine, but not straight piped (Hemi's need a little backpressure) running duals 3" in 2.5 out
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Old 05-26-2011, 06:41 AM
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I am running 3" all the way back through a single 18" Magnaflow. However I am thinking of switching to a duel setup which means if I stick with Magnaflow would mean switching to 2.5" from the muffler back.
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Old 05-26-2011, 07:26 AM
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I would go with true duals coming off the headers to 3 or 2.5 then to a magnaflow x-pipe to twin cutouts then to some light weight mufflers or muffler of your choice.
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Old 05-28-2011, 10:35 AM
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I'd run a Dynomax Bullet right after each cat and then a turn down after that under the cab.
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