Nitrous Express 4150 Gemini Pro-Power Nitrous Kit (100-500HP) w/o Bottle (60540-00) 1617 Noticeable improvement in exhaust flow

Noticeable improvement in exhaust flow and sound that you'll notice

2019 Chevrolet Silverado 2500 HD WT Extended Cab Pickup Duramax 6

Seibon advises against reinstalling stock springs to prevent damage and recommends hood pins for safety

Exhaust valve:

Nitrous Express 4150 Gemini Pro-Power Nitrous Kit (100-500HP) w/o Bottle (60540-00) 1617 Noticeable improvement in exhaust flowThe Gemini plate system is the most technically advanced single stage plate ever designed. The unique direct port pattern assures you perfect nitrous fuel distribution. It solves problems commonly found on single plane manifolds, particularly small and big block Fords. This new innovation provides superior distribution and outstanding atomization. With no spray bars to sag, split, block airflow, or damage this is truly the Next Generation in nitrous