My cure for the Angry Blow Dryer sound. - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 07-14-2012, 08:32 AM Thread Starter
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My cure for the Angry Blow Dryer sound.

First off there was a sale at my local Mack dealer so the 5" muffler's were on sale for $40. I got tired of the blow dryer sound and had one of these mufflers sitting next to my DPF in the shop so I though what the hell they are around the same size. It just about eliminated the blow dryer sound but still lets everything else through. I have been running it for about 3 months and have not had a problem. Before anyone ask that has not seen the inside of a semi muffler I would have to say there is zero restriction. If 12 liters of Mack engine can breath through it my 6.4 should be good.

08 F-350 FX4 CCLB,Lowered 3.5" in the rear with airbag assisted leaf springs and PMF Traction Blocks, Onboard Air, 18x10's, 325/60R18 Nitto Dura Grapplers, Mini Maxx, AFE stage 2 intake, Flo-Pro 4" duals.
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post #2 of 2 Old 07-14-2012, 10:19 AM
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so many different 5" mufflers. to say they have no restriction is a bit of a misnomer. I'm sure you're not hurting performance, but the standard shelf mufflers with the soft plug/diffuser in the middle don't flow near as well as something you can see straight through

a simple packed muffler will eat up the turbine sound
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