C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Exhaust pipe to X-brace interference

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Old 08-13-2003, 10:45 AM
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Five Window
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Default Exhaust pipe to X-brace interference

Anyone else have a problem with exhaust pipe hitting convertible X-brace. How did you solve it.

Thanks
Old 08-13-2003, 03:14 PM
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owen lancaster
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Default Re: Exhaust pipe to X-brace interference (Five Window)

have '96 vert. and installed the Corsa Cat back system and had vibration on installation but found it hitting the x brace. Repositioned exhaust and it clears the x brace perfectly.
Old 08-13-2003, 03:24 PM
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TheStef
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Default Re: Exhaust pipe to X-brace interference (owen lancaster)

I actually had the front section of the exhaust system hitting the X-Brace, that exhaust section just after the heathers.

The car would vibrate... especially when flooring the pedal to the metal :jester

Anyway's, after checking under the car I noticed that the exhaust pipe had been cut and re welded about 3 mm/0.3 cm .. ok ok, for you Imperial guys, about 1/4 of an inch lower then what is should of been and was sitting on the X-Brace.

INSTEAD of cutting the Exhaust and re welding.. I simply put 2 or 3 washing over the 4 bolts that holds the top right corner of my X brace to the frame and it created a bigger gap between the X brace and the Exhaust pipe.
(forgot to mention that the exhaust pipe was cut on passenger side of the car)

Now the pipe doesn't even touch the X brace and I don't have that weird vibration through the car.

Hope this helps you guys!
Old 08-13-2003, 04:25 PM
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NavyVet
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Default Re: Exhaust pipe to X-brace interference (Five Window)

Both of my cars have the x-brace and are lowered. This means that they sometimes bottom out on the x-brace. I just remove the x-brace and rebend it so it is square (all corners sit equal on level floor so it goes on with no preload) and reinstall. I find that the brace only hits when it has been pushed up from bottoming out, not because of an exhaust problem. Good luck.

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