Quick view Sinister Diesel Sinister Diesel 99.5-03 Ford 7.3L Powerstroke Intake Elbow - SD-INTEL-7.3-BK Compare $779.99 $599.99 The Sinister Diesel 7.3L Power Stroke intake manifold serves as an upgrade to your performance and appearance. It replaces the restrictive stock piping on your 1999.5-2003 Ford F-250 or F-350 Super Duty with larger diameter CNC mandrel bent aluminum... Add to Cart Add to Cart