1/4" Thick Aluminum Ceramic Coated Tunnel Plate

12.00 LBS
$10 Domestic U.S. shipping | AK, HI & Int'l calculated at checkout

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 1/4" Aluminum Tunnel Plate

This is very similar to our Most Popular ALTA-250 exept it does not include the Thermal Overlay for added heat shielding.  At a full 1/4" thick 6061-T6 aluminum, this plate is twice as thick as your stock OEM Tunnel Plate;  Coated on all sides with a specially engineered ceramic coated.  

This is the a great choice to offer both chassis stiffening and moderate heat shielding to reduce the amount of heat transfer from the exhaust.


Since its release, the redesigned Tunnel Reinforcement Plate has been one of the hottest suspension mods for the C5 and C6 Corvette.  Installed on both the C5R and C6R Race Corvettes, it has been proven over and over again to reduce the amount of torsional flex in the chassis.  In addition, our ceramic coating adds another benefit by offering some heat shielding from your exhaust system.

The engineers at General Motors acknowledged the benefits of a stiffer more rigid Tunnel Reinforcement Plate and improved their original design and incorporated something similar into the new

We have Taken their design one step further!

Featured in both Corvette Fever and SPEED, STYLE, & SOUND magazine.

We have re-engineered the undercarriage tunnel plate on the C5 and C6 with strength and performance in mind. CAD designed and computer precision cut, our 1/4” thick (6061-T6 Aluminum) “Abs-of-Aluminum” Tunnel Reinforcement Plate is twice the thickness of the stock OEM plate.  The benefits of this added thickness is a much more rigid and stiffer tunnel plate.  Therefore reducing the amount of flex in the chassis and improving the overall functionality of the Corvette suspension.  

Below is a picture comparing the stock OEM C5 and C6 tunnel plates to our most popular
1/4”  thick aluminum version (Abs-of-Aluminum)

elites2.jpg    elites3.jpg


In addition to improved stiffening, another major advantage or our Tunnel Reinforcement plate is the heat shielding it offers.  All our Tunnel Plates are coated on all sides with a specially engineered Ceramic Coating to reduce the amount of heat transfer from the exhaust into the interior console.   For more heat shielding, check out our ALTA-250 1/4" Thick Aluminum Ceramic Coated Tunnel Plate WITH Thermal-Abs

Upgrading your exhaust?
If you are changing or upgrading your exhaust, now is the time to install one of our Tunnel Reinforcement Plates.


Does your console get HOT?
Check out our "Thermal-Abs"  In addition to ceramic coating our Tunnel Plates we have a "new" product that greatly reduces the amount of heat transfer into your console area from your exhaust.            
Click Here for Info:

Now available with our "Thermal-Abs"  Heat shielding.


The “Abs-of-Aluminum” is a direct replacement for your stock
OEM tunnel reenforcement plate and bolts in place using the existing hardware.   
Installation is very simple and instructions are included.


Need more information about Tunnel Plates, Click HereTunnel Reinforcement Plate

Other benefits include:
● Rigidly ties the right and left inner chassis rails together
● (2x) Access Holes for O2 Sensor Wires    ● A must for Coupes and Convertibles!
● Direct, bolt-on replacement
● Greater sense of control behind the wheel when cornering
● Reduced squeaks, creaks and noises while driving
● Significantly decreases the
heat transferred to the interior console
● Sound deadening qualities


Product Reviews

  • 5
    Exact fit

    Posted by CHRISTOPHER HOWELL on 7th May 2018

    The plate was an exact fit with excellent fit and finish.

  • 5
    C5 Tunnel Plate

    Posted by Unknown on 4th Jul 2013

    This is a great (and inexpensive) mod. It really tightens up the body and allows the suspension to work and not the body flex. My neighborhood has several speed bumps I have to cross over daily. I could feel the difference right away. I was able to get out on a few mountain passes today and the car just felt great in those turns, very composed. Just buy it. It's a simple install (once you get past the exhaust system) A lift is handy.