aFe Momentum GT PRO 5R Stage-2 Si Intake System, GM 09-13 Silverado/Sierra 1500 V8 (GMT900)Bringing you the next generation of intakes, the Momentum GT sealed air intake system is designed using the most up to date engineering tools and techniques to provide you with the perfect blend of power and protection. This intake system is superior in every way. From the one piece sealed housing with a tire tread top, to the massive air filter and premium hardware, we spared no expense to give you the best intake on the market. Installation