Today were going to review part number AR201281. This is the Airaid MXP Intake System with the SynthaMax Filter. This part number is designed to fit the 20 2011 to 2012 Chevrolet Silverado and GMC Sierra trucks that have the 6.6 L Duramax LML diesel engine.This part is a cold-air intake system, which will increase your engine horsepower and your torque by collecting cold air and then improving the… see more >