3" downpipe quick question - Ford Powerstroke Diesel Forum
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Old 01-29-2012, 06:03 AM
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3" downpipe quick question

I noticed it says the MBRP 3" DP wont fit with the stock cat, does anyone know if the Diamond Eyes will? I need to keep the stock system from the cat back for emissions purposes, just need to replace the cobra with something less restrictive.
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Old 01-29-2012, 06:52 AM
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Yes the diamond eye is flanged same as the stock cat with the two bolt flange.
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Old 01-29-2012, 07:27 AM
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Quote:
Originally Posted by yngbuck19 View Post
Yes the diamond eye is flanged same as the stock cat with the two bolt flange.
sweet thanks man! I take it the MBRP is different in that it has a 3 bolt flange?
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Old 01-29-2012, 07:56 AM
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Mrbp has a 3" bell end or something like that
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Old 01-29-2012, 08:00 AM
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Go stainless it will hold up better for the extra 20 bucks
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Old 01-29-2012, 09:43 AM
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first see if you can get the cat and downpipe separated. I just got the cheapest one and used an adapter to mate my GUTTED cat back to the downpipe
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Old 01-29-2012, 09:54 AM
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I got the diamond eye downpipe. Only cause I got a deal on it. And yes it does have the factory style flange on the end.
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Old 01-30-2012, 05:46 AM
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I have a cat delete pipe if you need one cheap.
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Old 01-30-2012, 06:41 AM
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i'll need to keep the cat for emissions testing unfortunately. Is there not a "for sale" thread in these forums?
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Old 01-30-2012, 06:56 AM
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they do actual emissions on diesels where you are? I would just make it look like you have a cat instead.

there is a for sale section but it's off of the main forums page. Done by interior, exterior, performance, etc not by year/body style
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