2004 2005 2006 2007 2008 Acura TSX with 2.4 L 4 cylinders Engine Cold Air Intake RED AC04R(Included Air Filter) 04-08 Acura TSX with 2.4 L4 cylinders Engine Cold Air Intake RED AC04B (Automatic & Manual) It's the ultimate performance Cold Air intake Kit(Included Air Filter) The air intake kit can help your engine to draw more cold air resulting in better throttle response This air intake kit will increase 7-10% of Horsepower and 5-8% of Torque Easy to install and easy to fit with simple tools