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ok my question ive found a full magnaflow 4inch exhaust turbo back and my buddy said a 4inch downpipe wont fit will it or wont it... JOIN NOW TO REMOVE TRACER

4inch downpipe

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  #1  
Old 07-08-2011, 01:41 PM
86F2506.9,77F2506.6's Avatar
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Default 4inch downpipe

ok my question ive found a full magnaflow 4inch exhaust turbo back and my buddy said a 4inch downpipe wont fit will it or wont it

86F2506.9,77F2506.6's Sig:2005 Ford 6.0 powerstroke

1991 F250 7.3IDI extra cab, ATS Wastgated turbo, 4inch Lift

1986 F250 6.9, 4inch custom exhaust into single 6 inch mitre stack, 33inch super swamper TSL/THORNBIRD, Ats non-wastegated turbo kit
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  #2  
Old 07-08-2011, 01:43 PM
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Luke Buchanan lukesdiesel
   
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Default Re: 4inch downpipe

It will with a little work.

Luke
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  #3  
Old 07-09-2011, 12:16 AM
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They will fit, but not worth the trouble, you wont notice crap over a 3.5" DP. If you can get a good deal on it, go for it. It WILL fit, but it might rub the firewall here and there...

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Old 07-09-2011, 12:25 AM
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how much modification we talking about here or would it be better getting a 3 and a half inch downpipe
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Old 07-09-2011, 08:29 AM
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Luke Buchanan lukesdiesel
   
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Default Re: 4inch downpipe

I would get the 3.5" DP

Luke
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  #6  
Old 07-09-2011, 11:18 AM
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Originally Posted by Diesel Dawgs Performance View Post
I would get the 3.5" DP

Luke

yea thats what i was thinkin
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  #7  
Old 07-13-2011, 10:01 PM
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what size is the stock downpipe?

99stackedpowerstroke's Sig:2/03 6.0 4door short bed lariat, 4x4, fx4 package, arp studs, egr delete, AFE stage 2 intake, isspro trans temp, fuel pressure, boost, and pyro. sct tunner with custom tunes by idp. 4inch turbo back (true turbo back) 6inch tip.
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  #8  
Old 07-14-2011, 09:04 AM
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3" is the OEM size.

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  #9  
Old 07-14-2011, 10:06 PM
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okay, mine still has all factory exhaust and it has to go!! should i do the 3.5 or just cut the cat and muff of and maybe add a tip??
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  #10  
Old 07-18-2011, 07:33 AM
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I ran a stock exhaust with a cat/muffler delete for a while. It's a raspy sun of a gun! It's probably one of the louder exhaust setups I've run believe it or not. I think a 4" turbo back is about as loud, but deeper. 5" screams inside of tunnels and garages kind of thing, but not noticeably louder than the 4", and my stack setup is LOUD inside the cab, but outside is a little deeper and not as loud as a turbo back setup.
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