The Performance 12V 3" aluminum elbow Intake pipe for your 1994-1998.5 Dodge 5.9L Cummins diesel is built from fully tig-welded 3.5" 6061-T6 mandrel bent tubing. Designed to spool-up, engine efficiency and throttle response, this intake elbow features a 1/2" thick flange and 2 1/8" NPT Ports for easy installation of a injection system or even a boost gauge.