GMT 800 & Older GM General Discussion 2006 & Older Trucks | General Discussion

asm header installation instructions?

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Old Jun 15, 2004 | 08:24 PM
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Talking asm header installation instructions?

any one care top share there installation instructions of the asm headers. need to know about the cutting of the y pipe. thanks.
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Old Jun 15, 2004 | 08:40 PM
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You cut both ends of the Y pipe .5" from the cat.
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Old Jun 15, 2004 | 09:15 PM
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Talking

thanks/
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Old Jun 15, 2004 | 10:20 PM
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1/4" on my instructions.
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Old Jun 16, 2004 | 08:11 PM
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Originally Posted by Fast4.8
1/4" on my instructions.
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