Scorpion Exhausts Exhaust Tunnel Brace 18 Fun Facts About Pufferfish The Puffiest Fish Of The Sea Facts.net. Remove the unsightly OEM Tunnel Brace and replace it with this stylish Scorpion Exhausts brace which brings additional rigidity and looks to the underside of your car for those lucky enough to see it. Our innovation towards performance, packaging and durability keeps Scorpion at the cutting edge of this highest form of production based motorsport. This approach allows customers to share the emotion and thrills of our racing programme in a premium product that can be fitted directly onto your road vehicle.