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normal exhaust sound
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  1. 6.0L Performance Parts Discussion
    I have a question for the collective wisdom of the forum. Three weeks ago I bought a 2006 F350 DRW. Yesterday I had a local shop install a MBRP 4" Turboback exhaust system (Straight pipe--no cat and no muffler). When I picked up my truck after the install, everything seemed fine. However...
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