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AFE Cold Air Intake PRO DRY si GM Duramax6.6L LB7 2001-2004 51-80782

51-80782

Gain up to 19 hp and 27 lbs. x ft. torque and outflows the factory intake by 50%. Want a better deal? Contact us about a performance package today.

Pricing: $312.55

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Description

Features:

-Improves airflow to your engine
-Isolates the air filter from engine heat, enabling it to take in cooler, denser air
-Increases horsepower and torque, improves performance
-Designed and tested for each specific application
-Includes a conical high performance aFe Pro DRY S air filter; it never needs oiling
-Includes a precision designed molded, sealed plastic airbox and plastic intake tube
-Comes complete with everything required for installation, including comprehensive instructions
-Can be installed in 45-90 minutes with simple hand tools; no drilling, cutting or fabrication required
-Limited 2-year warranty
-Proudly made in the USA

The Stage 2 Si Cold Air Intake System is for those who want a substantial performance gain with less intake noise and a stock appearance. It replaces your factory, restrictive air intake system with a massive aFe Pro DRY S air filter, a sealed plastic air box that isolates the filter from engine heat and quiets intake noise, and a rotomolded plastic intake tube with smooth bends for increased airflow volume. The increased flow of cooler air to your engine will result in noticeable gains in power and performance. Cooler, denser air contains more oxygen, and more oxygen in your engine's air intake charge means better combustion, resulting in greater engine output.

The Pro DRY S filter combines high airflow and filtration efficiency with the convenience of oil-free maintenance. It contains 2 layers of randomly porous synthetic fabric, which allows approximately twice the airflow when compared to a typical stock air filter. The increased airflow results in more horsepower and torque, better throttle response and more miles per gallon. But this improved airflow and performance hasn't been gained at the expense of engine protection. The Pro DRY S has an excellent 99.2% filtration efficiency rating.

The pleats in the filter are evenly spaced for greater dust holding capacity and the tips are rounded for better airflow. They're also 30% deeper than comparable aftermarket air filters for longer service intervals and greater dust holding capacity. The sealing surface and supporting structures are made from 100% polyurethane, to withstand extreme engine temperatures.

The one-piece sealed plastic airbox may install in the same location as the factory airbox, but there the similarity ends. The Stage 2 Si airbox is much larger inside in order to include the largest aFe Pro DRY S filter possible. The air box also features strategically located openings and scoops to ensure that only the coolest air is forced into the air filter for greater efficiency and performance. And enclosing the air filter also results in less intake noise. The Stage 2 Si airbox installs easily; no cutting or drilling is required, and it's attached with quality stainless steel hardware supplied with the kit.

A specially developed 3-angle velocity stack smoothes the airflow transition from the air filter to the rotomolded intake tube. The precision design and smooth contours of the intake tube maximize airflow volume and speed for optimum power gains. The intake tube also features a precision tuned MAF sensor pad, which will not affect engine performance or cause a CHECK ENGINE light.

The aFe Stage 2 Si Cold Air Intake System comes complete with everything necessary for installation, including comprehensive instructions. It's backed by aFe's limited 2-year warranty and made in the USA.

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