99 00 01 02 03 04 05 06 GMC Sierra 1500/1500 HD with 4.8L/5.3L/6.0L V8 Engine Heat Shield Intake RED (Included Air Filter) #HSI-CD-1R 99 00 01 02 03 04 05 06 GMC Sierra 1500/1500 HD with 4.8L/5.3L/6.0L V8 Engine Heat Shield Intake The air intake kit can help your engine to draw more cold air resulting in better throttle response It's the ultimate performance Cold Air intake Kit with higher explosive horsepower output 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