2006-2007 Duramax Cold Air Intake Kit (42142)

Its large cotton gauze air filter requires fewer cleanings than competitive filters (stock's small paper filter is not reusable). With its giant 7-1/8" outlet, streamlined components and enclosed cold-air box that keeps hot engine air out of the intake, the Ram-Air flows up to 48% better than stock. Improves power and fuel economy; lowers exhaust gas temps and reduces black smoke. (An indicator of unburned fuel, black smoke is power you can see but not use!)

The cold air intake kit features a big cotton gauze filter that needs less maintenance compared to other filters (unlike the small and disposable paper filter on stock models). It's oversized 7-1/8" outlet, sleek components, and sealed cold-air box effectively keep hot air from the engine out of the intake, resulting in a superior 48% increase in airflow compared to stock models. This not only boosts power and fuel efficiency but also decreases exhaust gas temperatures and minimizes black smoke. (Black smoke is a sign of wasted fuel - it may look cool, but it's not exactly usable power!)

Part Number: 42142 / 42142-D

• Enclosed housing
• Dry Air Filter Element/Oiled Air Filter Element
• Giant filter maximizes high-flow filtration
• Bellows to accommodate engine movement
• 5-year Limited Warranty (Filter: Lifetime Limited Warranty)
• Reduces exhaust gas temps (EGTs) and smoke
• Outflows stock and competitors up to 57%
• Dry Air Filter Element
• Designed to not cause fault or error codes.

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