The top 5 intake brands enthusiasts actually trust for the GMT900 — LMM Duramax (2008-2010) GMC Sierra 2500HD/3500HD (Duramax) — ranked by community reputation and fitment reliability.
2008-2010 GMC Sierra 2500HD/3500HD (Duramax) · Intake
InstantFetched 3d ago · Refreshes in 57d
Banks Power
Best fitment, proven reliability on LMM Duramax platform.
Sold direct through Banks Power's own site.
AirAid
Trusted fitment, popular choice among diesel truck owners.
Widely available through major performance retailers.
Hypertech
Solid reputation, reliable fitment for LMM Duramax.
Widely available through major performance retailers.
S&B Filters
Quality construction, good community trust for durability.
Widely available through major performance retailers.
AFE Power
Proven performance intake, solid fitment track record.
Widely available through major performance retailers.
Adds live pricing, recent forum sentiment, and fitment notes from real-time search.
Curious what to expect? Here's a sample report for VA (2015-2021) Subaru WRX.
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