Air and Fuel Nitrous Oxide Systems and Components

Nitrous Express

Nitrous Express - SINGLE ENTRY CROSSBAR RNC .178 250-650HP (4500 FLANGE) W/15LB BOTTLE - 63970-15

$1,783.99

SKU: N004 63970-15

In Stock
In Stock
Ships by Jun 20
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Nitrous Express Single Entry Crossbar RNC .178 4500 Flange Nitrous Kit is a complete system designed for significant power boosts, offering 250-650 HP gains. It features a single entry crossbar with a .178 nozzle and a 4500 flange, paired with a 15-pound nitrous bottle. The system includes a billet aluminum Lightning 500 bottle valve, 5/8 siphon tube, and a .500 orifice for optimized flow. The kit comes with 15178 (.178 in.) Nitrous and 15301L Fuel Lightning Solenoids, a custom solenoid bracket, high-flow braided stainless steel lines, nickel-plated fittings, a wide-open throttle switch, a 6AN feedline, a master arming switch, an amp relay and harness, and jetting for the 250-650HP range.

Fitment

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Specifications

BrandNitrous Express
Part NumberN004 63970-15

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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