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09-15-2019
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#1 |
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Join Date: May 2018
Location: nyc
Posts: 17
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frame stiffener
has anyone used one of these:
https://www.vette2vette.com/?q=produ...r-bar-system-5 or what is the recommendation to stiffen up the frame |
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09-15-2019
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#2 |
 Join Date: Sep 2012
Location: United Kingdom
Posts: 68
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Re: frame stiffener
Fitted a no flex system to my '90 ZR-1 about 3 years ago in an attempt to help stiffen the frame, especially with the roof section removed. It certainly helps, particularly on poor roads and, in my view, was well worth the money. It's also pretty straight forward to fit.
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09-15-2019
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#3 |
 Join Date: Jan 2015
Location: Marietta, GA USA
Posts: 1,160
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Re: frame stiffener
I've heard good things about them. I bought one and I'm waiting for some spare time to install it.
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09-15-2019
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#4 |
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,169
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Re: frame stiffener
I still have the original Prototypes on my car.. installed in 2009 or 2010..
__________________
1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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09-15-2019
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#5 |
 
Join Date: Dec 2007
Location: NYC
Posts: 1,189
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Re: frame stiffener
__________________
90 Chevy ZR1 LPE #2315 'SOLD' 90 Chevy ZR1 LPE #2774 'SOLD' 91 Chevy ZR1 Callaway aerobody 91 Chevy ZR1 #1512 91 Chevy ZR1 #951 95 Chevy ZR1 #338 'SOLD' 91 BMW 850i 94 BMW 850csi 95 BMW 850csi 94 Lotus Esprit S4 07 Benz CLS550 06 BMW M5 "SOLD" |
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09-16-2019
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#6 |
Join Date: Aug 2012
Location: Ellicott City, MD
Posts: 1,714
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Re: frame stiffener
I have it and know it makes a difference with the roof off. In the past going out of our development there is a dip in the road. With the roof off car would make all kinds of noise going over the dip. After the install, no more noise.
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Charlie __________ Dredgeguy WAZOO Member 1992 Bright Red/Black ZR1 #246 Dana 4:10 gears Polished LT5 by Haibeck Polished Fikse FM5's with Michelin Pilot Sport 2 Stainless Works headers and cats with Corsa |
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09-16-2019
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#7 |
Join Date: Feb 2010
Location: Jacksonville,FL
Posts: 242
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Re: frame stiffener
I agree with Charlie. If you want to ride around with the targa off, you want the frame stiffening bars on your car. I've done the Dragin several times with the targa off and can say they work.
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Gary 90-1572 
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09-16-2019
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#8 |
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Join Date: May 2018
Location: nyc
Posts: 17
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Re: frame stiffener
thanks for all the feed back, a local member offered me to buy his spare, so i took the deal!
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09-16-2019
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#9 |
 Join Date: Apr 2004
Location: ATL. GA.
Posts: 2,170
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Re: frame stiffener
The other option is the roof truss bar unlike the frame stiffener it only works for driving with the top off.
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Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold |
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09-17-2019
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#10 |
Join Date: Nov 2016
Location: Southlake, TX
Posts: 592
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Re: frame stiffener
Thanks for all the input. I see that (almost) universal approval of the system for when the Targa is off. How does the system work/help/improve the car when the top is on?
I rarely pull the Targa off so I alternate between the acrylic and the painted top. I get some pops and creaks with the top on. I am wondering if the system will help "quiet" the car down when the tops are on?
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Bill Schroeder Texas Proud! 1991 Corvette ZR1 #1388 2015 Challenger Scat Pack Shaker 
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