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C4 No-Flex Frame Stiffener Bar System (1/4)
 2/9/14 4:13pm
djones57
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Joined: 12/2/2011
Posts: 23

Has anyone installed this system? I read that it was developed by Gordon Killebrew then marketed and sold through Vette2Vette. Looks interesting, but the 499.00 price is steep to try it...wanted to know if somebody here has already done the modification.

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Re: C4 No-Flex Frame Stiffener Bar System (2/4)
 2/10/14 7:04pm
TwoCorvettes
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Garland, TX - USA

Vette(s):
I have a 1991 Artic White, Red Interior convertible, 30,000 miles on it, & a 1993 40th Anniversary with 50,000 miles on it


Joined: 1/1/2013
Posts: 37

   The C4 was "Cutting Edge " when it left the factory in Bowling Green. I can't imagine needing a frame stiffener on either one of mine. And I am a tight wad when it comes to cash. When this guy developed this stiffener, was he daily driving his C4 or racing it?.................
Re: C4 No-Flex Frame Stiffener Bar System (3/4)
 2/10/14 11:38pm
Adams' Apple
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Duncanville, TX - USA

Vette(s):
1985 Coupe-L98/Auto,Bright Red/Carmine. 1974 Coupe-L48/4speed, Medium Red Metallic/Black Deluxe.


Joined: 3/18/2009
Posts: 2135

Looks like a fancy "upgraded" factory "X" brace, originally used on the convertibles.You can prolly buy one of the GM braces for less than $500, and it bolts right on. The factory piece WILL inhibit access to the trans pan, and driveshaft, but it isn't that hard to install/remove.

vette2vette frame stiffener


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Re: C4 No-Flex Frame Stiffener Bar System (4/4)
 2/11/14 2:46pm
Cvette98Pacecar
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Frankenmuth, MI - USA

Vette(s):
1991 Steel Blue ZR-1 1991 Callaway Aerobody ZR-1 1993 Callaway 40th Anniv ZR-1 1998 Pacecar 2003 50th Anniversary Pacecar


Joined: 1/6/2013
Posts: 14

This is designed for racing. A stock C4 does not need the frame stiffened. 
However with that being said, there is currently about an inch of flex when you lift the car without the top being installed.


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Robert J. DeMarco
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1991 Callaway Aerobody ZR-1 #1026 Purple Pearl Mist 
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