Ram Air Scoop (38640) 2005-2015 Toyota Tacoma 4.0L V6, 2.7L L4Description Vehicle Fitment & Emissions Installation Instructions If you want to further increase your Volant CAI kit effectiveness, add on the Volant Cool Air Scoop. Customers using the Volant CAI kit with the scoop report 2 4 MPG improvements in fuel economy, as well as dyno proven horsepower and torque increases. Volant is the first air intake company to properly apply a functioning Cool Air Scoop to a sealed air intake box. Throttle Body Spacer