8-Lug Truck Performance Duramax, 8.1L, and HD tech | Intakes | Exhaust | Tuning | Suspension | Drivetrain

2011 6.6 tuning and exhaust

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Old 02-13-2012 | 08:28 PM
  #21  
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From: From Houma La. Living n Ellisville Miss.
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Originally Posted by jimmyboy8301
the ONLY way to get more sound out of an LML is to remove the DPF, if you do a DPF back exhaust it is completely worthless. Also on the LML's ANY tuner you use leaves a "footprint" that can be read by the dealer thus voiding your warranty. just something to think about.
yep u r right this goes for any gm vehicle of 08 and newer
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