These versatile Universal Hood Louvers are similar/based on the Daytona Coupe Side Vent Louver design.  These could be installed on a hood to vent heat and pressure, or installed vertically behind the front wheels to vent pressure from the wheel wells.  Mount them from the bottom side of the hood for a clean, finished look or surface mount them to the top of the hood for that aggressive racing look.  Install them one in front of the other or side by side for extra cooling.  With a wide range of sizes to choose from, you can configure these to use for nearly any application you can dream of.  Cut from .080″ aluminum and shipped flat so that you can use them as a template to trace the cut lines onto your hood/fender before assembling them.  Dimensions listed below are total outside dimensions of the perimeter of the panel.  Available in the following sizes:

5.4″ x 9.4″ (these are the Type 65 Daytona Coupe Side Vents – top photo) – $37 each or $63 per pair

6.4″ x 9.4″ (not pictured….same as Daytona Coupe Side Vents but with one additional louver added) – $39 each or $67 per pair

5.4″ x 15″ (bottom set in the 2nd photo below) – $41 each or $77 per pair

5.4″ x 17″ (top set in the 2nd photo below) – $43 each or $83 per pair

5.4″ x 23.5″ (not pictured…same as the 17″ units with a total of 3 braces instead of just 2) – $57 each