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Author Topic: Stronger tunnel brace?
GORT
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I am curious if any one here uses an aftermarket tunnel brace. Namely the tubular one from BMR. Did you notice any difference?
Posts: 13 | From: Folsom | Registered: Nov 2001  |  IP: Logged
BPS
1st Gear
Member # 1260

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HI, sorry to be dim but what is a tunnel brace? You mean there is something I haven't modded yet

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94Z M6 Ragtop, Supercharged, Ported, Cammed, Lowered,
Borla, Headers, ZR1's,315's, G-Force KD's, suspension mods, appearance mods, mods on mods, etc.....

See the Project

Posts: 121 | From: Victoria, BC, Canada | Registered: Nov 2001  |  IP: Logged
GORT
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Its the brace that goes under the exhaust. If you have seen the Kenny Brown SFCs it is the brace that they tie to in the middle. You can see a pic here:

http://www.bmrfabrication.com/dsl.htm

I have my KB SFCs installed now and while they help, I still have some cowl shake, so I am looking for ways to stiffen things up. I think it would look pretty cool in silver too


Posts: 13 | From: Folsom | Registered: Nov 2001  |  IP: Logged
BPS
1st Gear
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Thanks, I learned something today

It may look cool in silver but like how ofter will you get to see it

For $90 it not to bad - as long as the install is reasonable - I mean so long as you don't have to mess around with the SFC's too much.

--------------------
94Z M6 Ragtop, Supercharged, Ported, Cammed, Lowered,
Borla, Headers, ZR1's,315's, G-Force KD's, suspension mods, appearance mods, mods on mods, etc.....

See the Project


Posts: 121 | From: Victoria, BC, Canada | Registered: Nov 2001  |  IP: Logged
Xsta Z 28
2nd Gear
Member # 740

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I assume you have a M6, the A4 convertible does not have that piece. For some reason we have a big POS "X" brace in the way of everything.

SLP has a replacement for the "X" Brace.


Posts: 608 | From: Schaumburg, IL | Registered: Sep 2000  |  IP: Logged
Steve in Seattle
1st Gear
Member # 315

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The M6 has the X-brace as well. The single bar shown above will work for any convertible (bolts to the same place the 2 farthest back points on your X does), but is a direct replacement for the Coupe/T-top 4th gen which just uses the single bar shown in the pics.

Havn't seen the underside of a A4 vert yet, so I don't know if the X braces are differnet.

A tubular steel X-brace, with a straight bar as above, connecting the lower points of the X, and a bolt-in DS loop would be nice, but probably overkill ($$$ wise).

Anyone know if the A4 X-brace is the same dimentions as the M6 X-brace?

--------------------
1997 TransAm [BADBIRD]
Zaino
Sebring Silver on Graphite leather w/blk drop-top. M6, TCS-less, !MAF, LT4KM, 30% tint. Lingenfelter CAI, 160*stat, !CAGS, TB cover. McLeod Street Twin. Pro 5.0 Power Tower Shifter. Dynotech Engineering 3.5" Metal-Matrix Composite DS. Ratech Solid Pinion Bearing Spacer. Eaton Posi. GM 4.11:1 gears. TA Performance 10-bolt Girdle. Hotchkis STB. ES Tranny Mount. Nitto 555R's. Kenny Brown DD SFC's. BMR !TB kit. Optima Yellow Top. Mobil 1 Tri-Synthetic. Red Line Water Wetter. MBA Pedals, MAP cover, alt Fan/Pulley/Cap. AVS smoke tail-covers. The Sign Connection decals.

Team NW Fbody: Where the REAL racers are! (T32)
WSP: Have you made your donation lately? (The alternative: Jeannie)

Pending install time:
C5 calipers, KVR cross-drilled rotors, Spohn LCA brackets, Brown Bread (sound mat).


Posts: 84 | From: Seattle | Registered: Feb 2000  |  IP: Logged
Xsta Z 28
2nd Gear
Member # 740

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quote:
Originally posted by Steve in Seattle:
The M6 has the X-brace as well. The single bar shown above will work for any convertible (bolts to the same place the 2 farthest back points on your X does), but is a direct replacement for the Coupe/T-top 4th gen which just uses the single bar shown in the pics.

Havn't seen the underside of a A4 vert yet, so I don't know if the X braces are differnet.

A tubular steel X-brace, with a straight bar as above, connecting the lower points of the X, and a bolt-in DS loop would be nice, but probably overkill ($$$ wise).

Anyone know if the A4 X-brace is the same dimentions as the M6 X-brace?


I don't think it is the same, since the X -brace on the A4 prevents the installation of LT headers and/or Y-Pipe. SLP has developed a new brace for the A4 convertibles (replaces the X) so that one can install LT's and a Y-pipe.

[ 14 March 2002: Message edited by: Xsta Z 28 ]


Posts: 608 | From: Schaumburg, IL | Registered: Sep 2000  |  IP: Logged
BLUEBYU
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Check out the pic. The tunnel brace I had made at a weld shop for $60. Pretty simple, I took a picture of one on-line and my guy replicated it. Can't remember which of the vendors. Cut the bar out of 1/4" plate and bent the DS loop to fit the cavity and cross piece to miss the exhaust. Then welded in place. He did have to remove the DS to gain access when forming the strap. It is very sturdy and seems to work well.
Later, Randy H.[*]

Posts: 9 | From: Overland Park, KS, USA | Registered: Feb 2002  |  IP: Logged
BLUEBYU
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Pic didn't paste in...so here comes my huge avitar. The pic is there in the bottom right.

Posts: 9 | From: Overland Park, KS, USA | Registered: Feb 2002  |  IP: Logged
Callaway SS/450
1st Gear
Member # 1125

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The KB's Strengthen That Area Already!Verts Will Always Flex A Little No Matter What You Do!!
Posts: 52 | From: Long Island,N.Y. | Registered: Aug 2001  |  IP: Logged
   

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