WCFab's 4" High flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces the restrictive plastic factory parts on the 2020-2025 L5P 6.6L Duramax equipped Chevrolet Silverado and GMC Sierra 2500 / 3500 HD trucks for improved engine performance. - - Increases air flow to turbo producing improved horsepower and torque, quicker throttle response, and cooler intake temperatures by drawing cold air through the hood Ram Air duct and inner fender. All aluminum construction features large diameter 4" piping with smooth aerodynamic bends to improve intake air velocity, volume, and provide more aggressive engine and turbo sound during acceleration. Full assembly finished in your choice of WCFab's signature custom powder coat colors for a look as unique as your truck. - - -Installs easily with basic hand tools. - - -NO Tuning required, bolt on! - - -Will fit on stock truck no other modifications or upgrades necessary! - - Replaces the following GM Part Numbers: 84841229, 84841225, 84262962, 85614333, 84554702

This Part Fits:

Year	Make	Model	Submodel
2021-2025	Chevrolet	Silverado 2500 HD	Custom
2020-2025	Chevrolet	Silverado 2500 HD	High Country
2020-2025	Chevrolet	Silverado 2500 HD	LT
2020-2025	Chevrolet	Silverado 2500 HD	LTZ
2020-2025	Chevrolet	Silverado 2500 HD	WT
2024-2025	Chevrolet	Silverado 2500 HD	ZR2
2020-2025	Chevrolet	Silverado 3500 HD	High Country
2020-2025	Chevrolet	Silverado 3500 HD	LT
2020-2025	Chevrolet	Silverado 3500 HD	LTZ
2020-2025	Chevrolet	Silverado 3500 HD	WT
2020-2025	GMC	Sierra 2500 HD	AT4
2024-2025	GMC	Sierra 2500 HD	AT4X
2020-2021	GMC	Sierra 2500 HD	Base
2020-2025	GMC	Sierra 2500 HD	Denali
2024-2025	GMC	Sierra 2500 HD	Denali Ultimate
2022-2025	GMC	Sierra 2500 HD	Pro
2020-2025	GMC	Sierra 2500 HD	SLE
2020-2025	GMC	Sierra 2500 HD	SLT
2020-2025	GMC	Sierra 3500 HD	AT4
2020-2021	GMC	Sierra 3500 HD	Base
2020-2025	GMC	Sierra 3500 HD	Denali
2024-2025	GMC	Sierra 3500 HD	Denali Ultimate
2022-2025	GMC	Sierra 3500 HD	Pro
2020-2025	GMC	Sierra 3500 HD	SLE
2020-2025	GMC	Sierra 3500 HD	SLT