2005-2006 models only. The Typhoon Air Intake System is a free-flowing, 3-inch mandrel-bent aluminum tube induction system designed to provide cooler, denser air to the engine for increased performance. It is a direct replacement for the restrictive OE air box and the constrictive factory air filter and inlet tract. Using the most advanced airflow management technology, K&N has optimized the flow characteristics of the Typhoon Air Intake System to complement it's high-flow Filtercharger®. Engineered By K&N Provides A Custom Look Equipped With K&N's Filtercharger Element Easy Bolt-On Installation Million Mile Limited Warranty HP & Torque: 8-10 HP/10 ft lbs Torque Installation: All Typhoon Air Intake Systems come complete with installation hardware and step-by-step installation instructions, perfect for the do-it-yourselfer. Tech Notes: To clean the filter, first brush off any large embedded dirt. Then spray on the K&N cleaner and let it soak for 10 minutes. Next, Rinse off the element with LOW pressure water. (Always flush from the clean side to the dirty side.) Then allow filter to dry NATURALLY. After filter has dried re-oil with K&N air filter oil only. Apply evenly to entire filter making sure to oil down into each pleat. Then re-install making sure the element seats properly in the filter case. 50 States Smog Legal