3' DP - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 02-12-2008, 11:41 AM Thread Starter
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3' DP

I`m thinking about going w/3" turbo back, no cat, no muffler. If I go w/4" from DP back I`m still going to have a 3" DP because thats all that you can get in there without a lot of mod to the firewall. So my question is would`nt a 3" turbo back serve as well as 4" in this case? Thanks

97 F-350, 7.3 psd, xlt, limited edition, obs, dually, E40d at, 410 r axle, reg. cab, 8ft bed, 145000 miles, DIY Tymar intake (napa filter) CCV mod. fpr bb mod, HPX crossover pipe, SS Bully steps, Reese Fifth wheel hitch, CB Radio, 3" DP /4" back w/cat delete and 4" flow-thru muffler w/5" tip.

Last edited by Triflex; 02-13-2008 at 06:30 PM.
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post #2 of 3 Old 02-12-2008, 05:08 PM
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Yes, the 3" is plenty for an OBS.

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'97 F-350 "FORDOR" 4X4 (Dually Conversion, Shackle Reversal, Technicooler , Auto Meter Gauges, 4" DIY Dual Exhaust w/ '08 tips, 4" DIY intake w/ AEM filter, Wicked Wheel 2, 360 thrust bearing, Homemade E-fuel conversion, Wildman Chip, 160cc DIY injectors , DIY IDM mod) 230K and counting...
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post #3 of 3 Old 02-12-2008, 05:59 PM Thread Starter
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Quote:
Originally Posted by pipelayerjdh View Post
Yes, the 3" is plenty for an OBS.
Thanks, I was hoping it was. I appreciate the reply. Have a good one.

97 F-350, 7.3 psd, xlt, limited edition, obs, dually, E40d at, 410 r axle, reg. cab, 8ft bed, 145000 miles, DIY Tymar intake (napa filter) CCV mod. fpr bb mod, HPX crossover pipe, SS Bully steps, Reese Fifth wheel hitch, CB Radio, 3" DP /4" back w/cat delete and 4" flow-thru muffler w/5" tip.
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