Increased Plenum and Runner Size Oversized Throttle Body Opening Made From High-Grade 356 Aluminum OEM Quality Shell Molded Casting Nitrous Mounting Bungs Skunk2 Acid-Etched Nameplate Broadest Usable Powerband Vacuum Tested To Ensure Quality Utilizes Stock Sensors 64mm Throttle Body Opening That Can Be Port Matched To 75mm Increased Plenum Volume 8” Tapered Runners For Maximum Torque and Power Increase CARB EO Approved