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Home / Forced Induction / Nitrous Systems / Nitrous Express Nitrous Kit w/Billet LT4 Supercharger Lid w/15lb Bottle
Nitrous Express Nitrous Kit w/Billet LT4 Supercharger Lid w/15lb Bottle
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Nitrous Express

Nitrous Express Nitrous Kit w/Billet LT4 Supercharger Lid w/15lb Bottle

PART 20939-15CATEGORY Nitrous Systems
$3,013.62
$3,013.62
1

Product information

Manufacturer information. Check the part number and installation requirements for your vehicle.

Supplier details checked 2026-09-23 · Test catalog

Some supplier details are unavailable for this product.

Product description

Nitrous System with Billet LT4 Supercharger Lid w/ 15lb bottle

Nitrous System with Billet LT4 Supercharger Lid w/15lb bottle

Nitrous Oxide Injection System Kit

Features

Quick And Clean Install

Supplier category
Forced Induction
Supplier subcategory
Nitrous Systems
UPC / barcode
653374976428
Units per product
1
Supplier Proposition 65 status
Y
Supplier EPA status
N/A
Air freight prohibited
No
Not CARB approved
Yes
CARB acknowledgement required
Yes
Freight delivery required
No
Powersports product
No

Manuals and documents

More manufacturer information

Other product descriptions

Nitrous Express Nitrous Kit w/Billet LT4 Supercharger Lid w/15lb Bottle

Injection System Kit - 20939-15

Injection System Kit

N2OSys

About the manufacturer

This Billet LT4 Supercharger Lid replaces the upper supercharger lid on all GM LT4 Superchargers for a quick and clean install. Nitrous and fuel are injected into each cylinder from inside of the supercharger lid, providing direct port style distribution. Systems come standard as a single stage with jetting for 100 to 300WHP. This lid is made from a solid piece of billet aluminum with 1/8NPT machined directly into the lid, which makes it easy to add a direct port water/methanol later on.

Additional manufacturer information

NITROUS; INTAKE; DIRECTPORT; LT4

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Nitrous Express Nitrous Kit w/Billet LT4 Supercharger Lid w/15lb Bottle | Q40 Motorsports