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Straight Pipe Cummins

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  #1  
Old 01-20-2010, 08:51 PM
DieselFreak556's Avatar
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Default Straight Pipe Cummins
Hey would straight piping my cummins make it loose power or back pressure? and if i do, what pipes would be best. Mbrp? Flowmasters? or Diamond?
 
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  #2  
Old 01-20-2010, 08:59 PM
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actually, it would runn a little better an have cooler egt's!!!!
 
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Old 01-20-2010, 09:11 PM
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if you straight pipe it go 5 inch, I liked my 4 inch at first but now I hate it, way to loud and raspy the 5'' has a deeper sound and not so raspy
 
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Old 01-20-2010, 10:52 PM
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Here's some good discussion on this same topic. https://www.dieselbombers.com/5-9l-2...-pressure.html
 
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Old 01-24-2010, 05:34 PM
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I lost a ton of Low End torque when I put a straight pipe on, I ended up putting a muffler on again. It was most noticeable when towing.
 
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