We all know that the LT4 is one of the best engines that General Motors has produced to date. From the low-end torque to the overall raw power it’s tough to beat the supercharged 6.2. But if the stock 650 horsepower just isn’t enough anymore what should you do? We suggest you call Nitrous Express and ask them about their billet LT4 supercharger lid.

Nitrous Express has been around for more than 20 years and has based their company on innovative design and cutting edge technology. Their new billet LT4 supercharger lid is no exception.

The NX billet lid comes in four different variations ranging from just the lid to nitrous and water-methanol injection systems. If you opt for just the billet lid (PN: NX939) you will gain 25 horsepower on the LT4 due to the improved airflow characteristics of the new design.

Maybe you’re looking for a little more power. NX also offers the billet lid with a nitrous system including a 10 LB bottle, the billet lid, Lightning solenoids, stainless steel braided lines, and all the necessary wiring and switches. This system (PN: 20939-10) is adjustable from 100 to 300 horsepower.

If you need a water-methanol system (PN: SNO-15127H-LT4) NX offers that as well. This system includes the billet lid, water/methanol solenoids, high-pressure electric pump, stainless braided lines, pre-bent stainless steel hard lines, filtered nozzles, a composite reservoir, an NX stage 2 digital progressive methanol controller, and all fittings necessary to complete the installation.

The last option (PN: 20939BMF-10) — and our favorite — includes both water-methanol system and the nitrous oxide system with the lid for both power and control. You will receive the billet lid, carbon-fiber Lightning solenoids, an industry exclusive billet aluminum Lightning 500 bottle valve, stainless steel braided lines, stainless steel bottle brackets, wiring, switches, and jetting for 100 to 300 horsepower. This system also includes all of the necessary water-methanol parts such as carbon-fiber lightning water-methanol solenoids, high-pressure electric pump, stainless braided soft lines, pre-bent stainless steel hard lines, filtered nozzles, plated fittings, composite reservoir, switches, and the NX stage 2 digital progressive methanol controller.

If you are just looking for a little more out of your LT4 or a lot, Nitrous Express has you covered. For more information please visit Nitrousexpress.com to see a complete listing of their products and accessories.