Banks Duramax Exhaust Tip. The 2015's have a straight tube tip, not tapered like the previous versions, so this clamp on tip was easy to install. The stock exhaust nozzle measures a measly 2.85 that drastically reduces exhaust flow right at the.

Banks engineered exhaust systems remove restrictions and add power and economy. The monster exhaust provides a 15% reduction in exhaust temperatures two feet behind the tip during regen.