aFe Power Momentum HD Cold Air Intake System w/ Pro 10R Filter
Fits 2020-2026 6.6L Duramax V8 (L5P) · 6.6L Duramax V8 (L5P, updated)
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Price tracked 10 times since Jul 25, 2026: low $378, high $441, currently $378.
where to buy · 3 retailers tracked
A cold air intake with a reusable Pro 10R cotton filter and a sealed housing that replaces the factory airbox on the current-body Sierra HD, covering both the pre- and post-2024 L5P.
why this one — The current Momentum HD kit aFe builds for the 2020-2026 Sierra HD, with a published dyno figure (+16 hp, +44 lb-ft) and a stated 710 CFM flow number. Honest downsides: the gain is smaller than the older LML kit claims, and aFe marks this one not for sale or use in California, so a CA-registered Sierra should skip it.
AFe product page states "Dyno-Proven Gains up to +16 HP and +44 Lbs. x Ft. TQ" and "Measured Flow: 710 CFM @ 7in H2O" for this exact SKU.
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Gain shown is a manufacturer claim, not a guarantee. Price is a list price and can lag the retailer; confirm at checkout. See our affiliate disclosure.