NOS TC178 Nitrous Solenoid 18178BNOS
NOS TC178 Nitrous Solenoid 18178BNOS NOS TC178 Nitrous Solenoid 18178BNOS NOS TC178 Nitrous Solenoid 18178BNOS NOS TC178 Nitrous Solenoid 18178BNOS NOS TC178 Nitrous Solenoid 18178BNOS NOS TC178 Nitrous Solenoid 18178BNOS

NOS TC178 Nitrous Solenoid 18178BNOS

$263.99 ea
Condition: NEW
Estimated arrival: 12/22/2021 (If Ordered Today)
10 available from HOLLEY PERFORMANCE PRODUCTS as of 12/08/2021
Supplier has not provided any fitment data for this product.
Shipping Note:Standard Delivery

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Muscle Cars & Classics always recommends professional installation of our products. Buyer assumes risk of damage caused by improper installation.

NOS TC178 Nitrous Solenoid was developed for one purpose; deliver the most nitrous volume possible for a single solenoid. With an industry leading 0.178" outlet orifice, the TC178 has the ability to flow in excess of 900 horsepower of nitrous from a single solenoid. The TC178 base is also constructed of 6061 Aluminum and then clear anodized. This reduces the weight by 1/4 of a pound over the NOS Super BigShot Trash Can Solenoid, and still retains the mounting location on the base. If maximum power from a single stage of nitrous is what you need, get the new NOS TC178.
  • Supports In Excess Of 900HP
  • Inlet Size - 1/4 in.
  • Outlet Size - 1/8 in.
  • Side Or Bottom Outlet Location
  • Orifice - 0.178 in.
  • PTFE Plunger
  • Lightweight 6061 Aluminum
  • Saves 1/4 lb. Over Similar Steel Solenoids
Holley Performance Emission Code 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
Installation Notes:
The TC178 offers a 1/8" NPT bottom exit and a 1/8" NPT purge port. The side purge port must be plugged if not used.

About NOS

NOS - Nitrous Oxide Systems. NOS has powered more racers than any other brand of nitrous. When you're looking to go fast, rely on NOS to deliver the most power per dollar available. From stock engines to race vehicles, jet skis to trucks, NOS has a kit for you.


Amp Draw 20A
Bracket(s) Included No
Color Black
Emission Code 4
Finish Natural
Fittings Included No
Inlet Side
Inlet Attachment Female Threads
Inlet Thread 1/4" NPT
Material 6061 T-6 Aluminum
Max Horsepower 900
Orifice 0.178"
Outlet Bottom
Outlet Attachment Female Threads
Outlet Thread 1/8" NPT
Part Type Nitrous Oxide Solenoid
Plunger Material PTFE
Product Line TC178
Purge Port 1/8" NPT
Solenoid Top Cover Color Black

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