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Fab'd Catted Y-Pipes?

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Old Oct 31, 2010 | 07:51 PM
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Default Fab'd Catted Y-Pipes?

Anyone have any pics of a fab'd Y? I want to get a set of OBX Long Tubes and I want to see what everyone else is doing to run cats with them. Pics would be great.
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Old Oct 31, 2010 | 08:55 PM
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I thought the OBX header systems came with y-pipes? I have LPP headers and i just ran some magnaflow high flow cats directly off the collectors. It was a tight fit but it worked because of how small the cats are. Although I'm removing the cats this week. Here is a pic of mine.

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Old Oct 31, 2010 | 09:06 PM
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The magnaflow high flow cats woluld prolly work great with the obx's just cut out the small resonators in the OBX's Y-PIPE and weld in the cats.
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Old Oct 31, 2010 | 09:44 PM
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I'm planning on a set of these and some magnaflow cats with a pacesetter off road Y. I just want to se if anyone has done a similar set up. I think zachm89's set up is pretty close to what i'd have.

What kind of gains would I be looking at with some LT's with my 4.8?
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Old Nov 1, 2010 | 08:43 AM
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My OBX's came with a Y pipe already, with two resonators that look a lot like cats. Also, the collector on the OBX's are 2 1/2", and the Y pipe on the pacesetters is 3". May be a little bit of a PITA to make it all work, and youll have an extra y pipe after its all said and done. If I were to run cats, Id just cut the resonators off and replace them with cats
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Old Nov 1, 2010 | 11:11 AM
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I have LPP's, and decided to make an X crossover when I did the 4l80e swap. I used high flow converters, and made the X to run into a DI/DO MAgnaflow. If you have a welder, you can make it how you like it. Here is a pic of if partially tacked in place, and it should be done this week when my driveshaft is done.

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Old Nov 1, 2010 | 05:27 PM
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that looks awesome!
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Old Nov 1, 2010 | 05:32 PM
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Originally Posted by black00chev
that looks awesome!
I agree...I'd like to see something like that under my truck, tucked around the transfer case
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Old Nov 1, 2010 | 06:48 PM
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that looks awesome.. does the tranny x member go above the X
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Old Nov 1, 2010 | 07:40 PM
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Thanks. X pipe is over the tranny crossmember. It isn't as close as it looks in the pics.



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