Cucvnut
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Does anyone know what the factory exhaust size is of the pipe ? is it 2 1/4 or 2 1/2? I searched but I could not find what i was looking for.
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M1008 Exhaust size
- Thread starter Cucvnut
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Zinlu
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My truck is at my shop up the road. I'll check tomorrow and post back.
Cucvnut
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Thanks!
DerangedMadman
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I just measured mine and it is 2 1/4 th.
Cucvnut
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Thank you sir !
axemurdock
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Would we get power putting on 3" pipes with no muffler ? Or does a diesel need backpressure like a gasser does .
ida34
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My muffler connections are 2 1/2" ID making the actual exhaust pipes 2 1/2 OD. The actual dimensions vary widely on a stock truck. The exhaust pipe necks down for about 6 inches right after the flange and it looks like it goes down to 2 1/4 but I have not measured. I am putting on new exhaust and started tonight and will finish in the morning so this is very fresh information.
Cucvnut
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im just going to cut mine off and have turbo mufflers installed under the bed with turn downs
Zero_cool
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did you put the turbo mufflers on? how did they sound?
ALA2
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I FOUND 3 IN flow masters used i think they sound good. turn downs under the bed not tight to fuel tank
Westech
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Stock exhaust is 2.5 inch from the engine to the inlet of the muffler and 2.25 after that.
same for a M1009
same for a M1009
jimmy-90
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That is what mine was. 2 1/2" from the exhaust manifolds to the mufflers and 2 1/4" the rest of the way back. I put a set of 2 1/2" dynomax straight throughs on mine with 2 1/2" pipes all the way back. Gotta say that pluming the pipe on the pass side was a real pain because of the e-brake bracketing. Latter on I wound up having to butcher the tail pipes in order to make room for a class-4 trailer hitch.
timarr
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As stated 2 1/2 to front of mufflers then 2 1/4 back. Just istall nice factory set from eastern military.