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3" downpipe on 2.5" 4 bolt exhaust flange?? pics please!!

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Old 06-28-2005, 10:19 AM
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Default 3" downpipe on 2.5" 4 bolt exhaust flange?? pics please!!

Wanted to see how other people have done this. I've heard of people crushing the pipe to make the bolts fit and of people using a 2.5" to 3" adapter. Please post pics!!
Old 06-28-2005, 10:47 AM
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Default Re: 3" downpipe on 2.5" 4 bolt exhaust flange?? pics please!! (theo99gsr)



I used Brood's (HT member) 2.5" to 3" transition piece for like $16 shipped. It worked well and easy to weld on. Better flow IMO as well
Old 06-28-2005, 12:07 PM
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Default Re: 3" downpipe on 2.5" 4 bolt exhaust flange?? pics please!! (theo99gsr)


Burns stainless has them. 2.5" --> 3.0"
Old 06-28-2005, 12:17 PM
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Default Re: 3" downpipe on 2.5" 4 bolt exhaust flange?? pics please!! (theo99gsr)

anybody with the compressor on the passanger side?
Old 06-28-2005, 12:31 PM
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Default Re: 3" downpipe on 2.5" 4 bolt exhaust flange?? pics please!! (theo99gsr)

if u check out atpturbo.com you can make a 2.5-3in vband for about 93 bucks.
Old 07-01-2005, 01:33 PM
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Default Re: 3" downpipe on 2.5" 4 bolt exhaust flange?? pics please!! (theo99gsr)

BUMP
Old 07-01-2005, 02:51 PM
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Default Re: 3" downpipe on 2.5" 4 bolt exhaust flange?? pics please!! (theo99gsr)

I just welded the the 3" pipe right to the flange and ported out the flange for a nice transistion.

Justin
Old 07-01-2005, 03:08 PM
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Default Re: 3" downpipe on 2.5" 4 bolt exhaust flange?? pics please!! (Justin Olson)

Just out of curiosity what turbos have this flange?

Would I have to worry about this on a GT28R?
Old 07-01-2005, 03:35 PM
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Default Re: 3" downpipe on 2.5" 4 bolt exhaust flange?? pics please!! (Justin Olson)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Justin Olson &raquo;</TD></TR><TR><TD CLASS="quote">I just welded the the 3" pipe right to the flange and ported out the flange for a nice transistion.

Justin</TD></TR></TABLE>
how would you get the bolts to go on then?
Old 07-01-2005, 04:14 PM
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Default Re: 3" downpipe on 2.5" 4 bolt exhaust flange?? pics please!! (LostCRX)

subscribe
Old 07-01-2005, 04:22 PM
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Default Re: 3" downpipe on 2.5" 4 bolt exhaust flange?? pics please!! (theo99gsr)

I put small dents in the pipe and use allen head bolts , works good i think ,

Old 07-01-2005, 04:37 PM
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Default Re: 3" downpipe on 2.5" 4 bolt exhaust flange?? pics please!! (B18C1CYA)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C1CYA &raquo;</TD></TR><TR><TD CLASS="quote">I put small dents in the pipe and use allen head bolts , works good i think , </TD></TR></TABLE>

Me too
Old 07-01-2005, 04:39 PM
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Default Re: 3" downpipe on 2.5" 4 bolt exhaust flange?? pics please!! (hulkhb)

i brought a 2.5" to 3" reduce from atp turbo. it was lik $25
Old 07-02-2005, 09:24 PM
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Default Re: 3" downpipe on 2.5" 4 bolt exhaust flange?? pics please!! (B18C1CYA)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C1CYA &raquo;</TD></TR><TR><TD CLASS="quote">I put small dents in the pipe and use allen head bolts , works good i think ,

</TD></TR></TABLE>

same as my full-race 60-1 , dented with 2 1/2" bolts and 2 allen head bolts
Old 07-02-2005, 11:52 PM
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Default Re: 3" downpipe on 2.5" 4 bolt exhaust flange?? pics please!! (hulkhb)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hulkhb &raquo;</TD></TR><TR><TD CLASS="quote">

Me too</TD></TR></TABLE>

yeah , my bolts haven't backed off or anything at all so far
Old 07-03-2005, 11:17 AM
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Default Re: 3" downpipe on 2.5" 4 bolt exhaust flange?? pics please!! (B18C1CYA)

that looks good. I think thats what i'll do too. thanks for the pic.
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