The cast intake horn on the Cummins is a known choke point. It not only makes performance gains but looks much better too.
Intake horn W/ cold side piping kit for 5.9L 12V Cummins 1994-1998 Ram 2500/3500
Intake horn W/ cold side piping kit for 5.9L 24V Cummins 03- 07 Ram 2500/3500
Wehrli WCF100721-BB fits Chevrolet 17-19 6.6L L5P Duramax 3.5in Intake Horn w/PC
3.5" Intake horn cold & hot side piping kit for 5.9L 24V Cummins 1998-02 Ram
Cold Air Intake Kit w/ Blue Filter 3 For 2007-2009 Nissan Altima L4 2.5L w/ MAF
Cold Air Intake Kit w/ Heat Shield For 19-2025 Chevy Silverado 1500 V8 5.3/6.2L
