LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Flowmaster merge y pipe.

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Old Dec 9, 2012 | 01:38 PM
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Default Flowmaster merge y pipe.

Ok guys I just got a 3-3.5" flowmaster merge so I'm gonna go from true duals back to a single system and want to build my own y pipe I was gonna buy a pacesetter y and add the merge but I can't decide if it'll be better vs fabbing one up with mandrel bends since the pacesetter y has the crush pipe.

Anyone have the part numbers of the bends they used and what bends they've used. I'm thinking of flanges of the headers vs slip fit unless slip fit is better. I have pacesetter longtubes btw.

Ive seen quite a few pics of ls y pipes but not really any on lt1s so if any has any pictures of one they've done please post up.
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Old Dec 9, 2012 | 10:03 PM
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I used a maganaflow 3" to 3" out. i cant seem to find any pictures of it. Im sure i posted it up awhile ago. Sory i couldnt post up any pics. as for bends get some 3" mandrel bends from summit. id get afew different size radius' so itll give you all the sizes youll need
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Old Dec 9, 2012 | 10:14 PM
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Found it

Hope that helps
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Old Dec 9, 2012 | 10:34 PM
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That looks great soxx! I think I'm gonna try ordering two of these to get me started still have to get the motor back in the car first if I can get the rest of my 24 x kit ordered lol.

http://m.summitracing.com/parts/sum-622005

What connectors are those slip fit style at the end of yours btw?
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Old Dec 9, 2012 | 10:42 PM
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Nvm just saw yours were mufflers lol may just stick with the whole flange idea I guess.
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Old Dec 9, 2012 | 10:44 PM
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Those are good U's theyll work just fine. if you want you could get some 45's i went with the U's because i was able to use every part of them. If your talking about the little mufflers on the front. I put them there to fool people to being high flow cats. They slipped right over my header collectors.. lucky me lol I used 1" pypes band clamps to connect them together
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