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4"-3" y pipe?

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Old Sep 28, 2011 | 11:22 AM
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Default 4"-3" y pipe?
Where could I find a good flowing single 4" in dual 3" out y pipe? somthing decently compact would be great.
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Old Sep 28, 2011 | 12:00 PM
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custom...you can use the FLOWMASTER merge..Its waiting in my garage when I'll be going with the 1 7/8 TSP headers next year.
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Old Sep 28, 2011 | 02:52 PM
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That would work but i dont see that in a 4" inlet 3" outlets. This is going to be used to split my 4" downpipe off the turbo into dual 3" to go over the rear axle.
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Old Sep 28, 2011 | 03:01 PM
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I may be looking at the sizes wrong.
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Old Sep 28, 2011 | 05:37 PM
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You should be able to use a Vibrant 2-1 merger #10362, since they look like they should flow good in either direction. It'll run you from $95-$130

BTW, it's(#10362) only 10" in length.

Here's the one I put on my exhaust:


Last edited by 99Bluz28; Sep 28, 2011 at 05:43 PM.
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Old Sep 28, 2011 | 05:39 PM
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you can still use flowmaster in reverse. but its not very compact, its huge actually. custom might work too.
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Old Sep 28, 2011 | 06:41 PM
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Originally Posted by 99Bluz28
You should be able to use a Vibrant 2-1 merger #10362, since they look like they should flow good in either direction. It'll run you from $95-$130

BTW, it's(#10362) only 10" in length.

Here's the one I put on my exhaust:
[IMG][/IMG]

[IMG][/IMG]
I REALLY love the look of that piece.. but 2.5" inlets? And those seem so damn close, how are you going to get the clams around there? Weld it?
Last edited by bayer-z28; Sep 28, 2011 at 06:55 PM.
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Old Sep 28, 2011 | 07:00 PM
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Originally Posted by 99Bluz28
You should be able to use a Vibrant 2-1 merger #10362, since they look like they should flow good in either direction. It'll run you from $95-$130

BTW, it's(#10362) only 10" in length.

Here's the one I put on my exhaust:


Thanks just what i was looking for, sure looks good too.
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Old Sep 28, 2011 | 07:45 PM
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Originally Posted by bayer-z28
I REALLY love the look of that piece.. but 2.5" inlets? And those seem so damn close, how are you going to get the clams around there? Weld it?
Yeah I have the 2.5" inlet/3.5" out merger replacing my BBK Y-merger. The 2.5" pipes aren't the restriction on my setup, the 3" exit was.
The dual inlets are slip fit, then once everything is where you want it you'll need to weld them up.
FYI, the merger I listed for Chevyboy82188 #10362, has 3" inlets and a 4" outlet.
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