K&N has designed a performance air intake system for the 2005 Pontiac GTO 6.0L V8. K&N dynamometer tests show a 13.95 horsepower gain with use of this K&N air intake modification. K&N tests multiple vehicles for each air intake kit it makes to ensure a consistent horsepower and torque gain. This video demonstrates the steps needed to install a power gaining K&N air intake into a 2005 Pontiac GTO 6.0L.