K&N High-Flow Intake System Adds 11.88 Horsepower to 2008-09 Pontiac G8The K&N High-Flow Intake System for the 2008-09 Pontiac G8 6.0L V8, (part no. 63-3071), increases horsepower by 11.88 hp at 4691 rpm. To achieve more horsepower, K&N replaces the G8’s original intake assembly; including the air box, air filter and intake tube with an all-new intake design. The new system draws air through a K&N High-Flow Air Filter that increases airflow and never needs to be replaced. Protecting the chrome top cone-shaped air filter, and isolating it from engine heat, is a powder coated steel heat shield that replaces the stock air box. As it passes the filter, air travels through a larger diameter K&N Roto-Molded Polyethylene Tube. (AJ) |