High-Flow 3″ Turbo Downpipe for 2015-2016 6.6L Duramax LML Turbo Diesel
Replace the restrictive factory downpipe on your 2015-2016 Chevrolet Silverado or GMC Sierra 2500HD/3500HD with the 6.6L Duramax LML Turbo Diesel using this mandrel-bent 3″ downpipe. The factory downpipe is a known bottleneck in the LML exhaust system, with a flattened cross-section design that restricts exhaust flow and increases turbo backpressure. Our 3″ mandrel-bent downpipe eliminates this restriction for improved turbo response, lower EGTs, and increased power.
