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2103 Exhaust System Nut Torque Specs?

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Old Oct 25, 2013 | 08:57 AM
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Default 2103 Exhaust System Nut Torque Specs?

Thanking you in advance...for 2013 base C6, does anyone know the torque specs for the 4 X-pipe flange nuts (front inlet of x-pipe), and the nuts on the x-pipe clamps (at the exit end of x-pipe)? Thanks...
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Old Oct 25, 2013 | 02:40 PM
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This is what I used on my recent LS7 swap...

- Cats to Intermediate pipe: 18 ft lb
- Intermediate pipe to muffler clamps: 32 ft lb

I doubt the LS3 specs are any different. If they are they're so close it's within the tolerance of the torque wrench.
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Old Oct 26, 2013 | 02:11 PM
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From my 06 Service Manual: Front intermediate pipe nuts 12 lb-ft, Rear muffler clamp bolts 32 lb-ft. Note: for LS7 system the manual calls for the front nuts to be 18 lb-ft, rear clamps the same at 32 lb-ft.
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Old Oct 27, 2013 | 08:18 AM
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......tight?
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Old Oct 27, 2013 | 10:39 AM
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Originally Posted by dev1360
......tight?
I'D go with that/
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