Exhaust Header/4" Cold Air Intake Kit All-In-One Kit for 1999-2006 Chevy/GMC GMT800 Silverado/Sierra/Avalanche 1500 Y-Pipe 2WD 4.8L 5.3L 6.0L

Fitment: 1999-2006 Chevy GMT800 Silverado/Avalanche 1500 (2WD) 4.8L, 5.3L, 6.0L 1999-2006 Chevy GMT800 Suburban 1500/2500 (2WD) 5.3L, 6.0L What's in the package? Exhaust Header 4" Cold Air Intake Kit Exhaust Header Specifications: Brand Name: FLASHARKCertificate: ISO9001:2000Application: Automobile Exhaust HeaderColor: Black, SilverSurface: Mirror PolishModel: EH28917(ES08207)  EH28903(ES08356) Purchase instructions: professional installation is highly recommended, exhaust systems are not always perfect, and while most of the time these exhaust systems work perfectly together, occasionally a slight modification to the exhaust system is required to achieve the perfect fit. 4" Cold Air Intake Kit Specifications: SKU: FLIS08104 Color: Blue Type: Cold Air Intake Kit Performance: 4'' Performance Cold Heat Shield Replacing or upgrading your exhaust header is necessary for both engine performance and sound. Whether on or off the track, exhaust headers provide more horsepower and improved exhaust sound. FLASHARK offers many products to help you create your own custom engine headers. It's really easy and convenient to use: direct bolt-on, no modification needed.   A Cold Air Intake System relocates the filter outside of the engine compartment to deliver the coolest air inlet temperatures possible. Cooler air carries more oxygen, which translates into a more intense explosion in the combustion chamber to create more horsepower and torque. But that's only part of the power equation. Tuning the inlet pipe in length and diameter to match the engine's resonance helps move more air to the cylinders (think of your engine as a big air pump), and this tuning allows us to deliver the maximum power gains throughout the entire RPM range