Improve turbo response and reduce boost pressure drop/loss on the stock intake system of your 2010-2012 Dodge 6.7L Cummins diesel. BD’s 6.7L Intake Elbow plenum is 74% larger with a 4-inch inlet and a full 6-bolt hole pattern compared to 5-bolt holes on other aftermarket elbows. Convenient ports have been added for connecting to gauges, water methanol injection and other injection nozzles. Finished with a black powder coat.