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Old 03-09-2011, 05:34 PM
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Originally Posted by agenthol302
how would i go about re doing the merge and im looking at flowmaster web site for the y collecters and im going to have 3 in collecter on headers and 3 in pipe all the way back and i dont see any 3in x 3in they are all bigger at the secondary
go with the 3" in, to 4" out... then just use a flowmaster smooth reducer.
Old 03-09-2011, 08:23 PM
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ok thanks
Old 03-09-2011, 08:49 PM
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Originally Posted by jzingre
Here is my buddies graph. He went from a crappy ypipe to a custom one with flowmaster merge...tq gains were crazy!

https://ls1tech.com/forums/dynamomet...p-426rwtq.html
That's funny because I just bought his intake setup off his car and i'm getting the same TFS 215 heads. I'm hoping for 460+ hp through an m6.

The gains from that flowmaster merge is amazing. I'm going to ask him for further details on it.
Old 03-09-2011, 10:02 PM
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Originally Posted by brians91formula
That's funny because I just bought his intake setup off his car and i'm getting the same TFS 215 heads. I'm hoping for 460+ hp through an m6.

The gains from that flowmaster merge is amazing. I'm going to ask him for further details on it.
Its a small world. Chris might have talked to you into the TFS 215's.... and I guess you should get them if you have the cash. I went with the TFS As Cast 220's hand ported by TEA. Saved me 500-600 bucks compared to the CNC 215's and they flow just as good as the CNC version. Might want to take that into consideration. Just trying to save you a buck.
Old 03-09-2011, 10:07 PM
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Originally Posted by brians91formula
That's funny because I just bought his intake setup off his car and i'm getting the same TFS 215 heads. I'm hoping for 460+ hp through an m6.

The gains from that flowmaster merge is amazing. I'm going to ask him for further details on it.
https://ls1tech.com/forums/generatio...ter-merge.html

Heres my custom Ypipe. Same as chrs1313 but I went with 3" to 3.5" out.
Old 03-10-2011, 05:32 AM
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you DONT hve to get the flowmaster although the merge is nice on that piece. The magnaflow y pipe comes in 3'' in and out and also stainless for a good price. That would a better option as well. Its not about looks here, we are just trying to help you rid of nasty sounding exhaust gases and also get you more usable horsepower
goodluck!
Old 03-10-2011, 01:33 PM
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http://www.summitracing.com/parts/WL...RO&prefilter=1

any one ever have any experience with this
Old 03-10-2011, 04:20 PM
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Originally Posted by agenthol302
http://www.summitracing.com/parts/WL...RO&prefilter=1

any one ever have any experience with this
This setup is meant to work with factory manifolds, and not the long tubes like you have...
Old 03-10-2011, 05:33 PM
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yea thats what i relized after lol thank god i didnt order
Old 03-11-2011, 04:54 PM
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how much does the flowmaster y-merge cost? anyone have the part # for the 3" in/3.5" out?
Old 03-12-2011, 06:37 AM
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$40..... look on summit racing... type flowmaster collectors in the serch box



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