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NOS 05173BNOS Plate Wet Nitrous System

Part # 05173BNOS Be the first to write a review

Compatible with 1997-2012 GM LS 102mm or 105mm 4-Bolt Drive-By-Wire Throttle Body. Black system is adjustable up to 250 HP. Includes 10lb bottle, 105mm plate, and all installation items

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NOS 05173BNOS Plate Wet Nitrous System

Estimated Ship Date: 07/10/2026
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If you are running one of the many LS based engines and would like to add up to 250 additional horsepower, NOS has a complete nitrous kit option for you.

These kits are ideal for adding a little more power to that stock engine or a lot more power to that custom built Hot Rod. Available for 4-bolt, drive-by-wire or cable operated throttle bodies in 90mm, 92mm, 102mm & 105mm plate sizes. These are Wet plates, meaning the additional fuel is added though the nitrous system, so there are no requirements for an injector upgrade*.

*It is important to ensure the existing fuel delivery system is adequate to support the expected power levels.

Features:

  • Fits GM LS engines with drive-by-wire style 102mm or 105mm throttle body
  • Includes jetting for 100, 125, & 150 horsepower
  • Ideal for use with the Holley Hi-Ram, Sniper EFI, or MSD Atomic LS Manifold
  • This wet kit provides exceptionally smooth power delivery
  • Single 105mm Â1/2 inch thick black plate between the throttle body and manifold
  • Bottle is made from 6061-T6 Aluminum
  • Supports up to 250 RWHP (jets purchased separately)
  • Includes a 10 lb. black nitrous bottle with brackets
Brand NOS
Emission Code4
Product TypeNitrous Systems
WarrantyManufacturer's Limited 90 Day (1 Year with Warranty Registration)
UPC090127044728
Manufacturer Part Number05173BNOS
Part Number05173BNOS
4

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

Bottle Notice for Part# 05173BNOS
Instructions for Part# 05173BNOS
Retains stock throttle body location and orientation using a 1/2 in. billet aluminum plate. Power levels up to 250 RWHP do not require injector upgrade, however, the total fuel supply system must be sized according to expected power levels. Recommend 1 step colder spark plug up to 150 RWHP, 2 steps colder spark plug on 200 and up RWHP
Manufacturer's Limited 90 Day (1 Year with Warranty Registration): See Details

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      *Free Shipping & Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

      Some parts are not legal for use in California or other states with similar regulations.