MBRP GM8427 3" TURBO DOWNPIPE 11-15 Duramax Hoodies The Derringer also auto-adjusts power

The Derringer also auto-adjusts power if knock occurs due to bad fuel

This cone filter has a massive oval flange and is 9" tall with inverted top

providing quicker spool-up and higher airflow than the factory turbochargers

One-piece heat shield requires little or no assembly and the filter is constructed with 100% polyurethane for long life and multiple cleaning cycles

100% TIG-Welded by certified craftsmen for strength and durability

MBRP GM8427 3" TURBO DOWNPIPE 11-15 Duramax Hoodies The Derringer also auto-adjusts powerDESCRIPTION The MBRP GMCA427 3" Turbo Downpipe eliminates the restrictive factory downpipe in your 2011 2015 GM 6. 6L Duramax LML. Featuring a mandrel bent aluminized steel construction, the MBRP 3" Turbo Downpipe provides a smoother flow from the turbo resulting in lower EGT's, increased performance, throatier sound, and faster turbo spool up. Each Downpipe is coated with a satin black high heat coating and wrapped with a high heat thermal wrap for