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Banks Power 3.5" boost tube upgrade kit for 2017–2019 Chevy/GMC 2500/3500 6.6L Duramax (L5P) replaces restrictive factory piping with mandrel-bent aluminized steel tubes and billet venturi couplers. The larger-diameter plumbing flows up to 680 CFM versus 364 CFM stock, reduces pressure drop for quicker turbo spool, and uses 5-ply silicone couplers with spring-loaded clamps for durable, sealed connections.
Banks Power 17-19 Chevy/GMC 2500HD/3500HD Diesel 6.6L Boost Tube Upgrade Kit - Red
