551-100 Sniper 551-100 Transmission Controller (STC) Service Unit Only w/o Handheld

Name: 551-100 Sniper 551-100 Transmission Controller (STC) Service Unit Only w/o Handheld
Brand: HOLLEY
SKU: 510-551-100
Price: 531.95 USD
Availability: InStock

^$531⁹⁵

Ships on 09/11/2026

Lowest Price Guarantee

Service Parts

Does Not Include Handheld
Requires ECU & Handheld Firmware
Sold Individually

This Holley Sniper 551-100 Transmission Controller (STC) Service Unit is offered as a replacement for Sniper 1 or Sniper 2 transmission control kits.

Transmission Control for EFI-Equipped Rides

Holley Transmission Controllers can give you the ability to adjust shift points, gear ratios, tire size, and more.

Part TypeAutomatic Transmission Control Module

Product LineHolley Transmission Controller Kits

BrandHOLLEY

Package Height13.5

Package Width13.8

Package Length15.8

Weight0.82 PG

Vendor Part Number551-100

Package Qty1

Package TypeEA

No Questions

No Reviews

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

551-100 Sniper 551-100 Transmission Controller (STC) Service Unit Only w/o Handheld

Transmission Control for EFI-Equipped Rides

⚠️ Warning

Motor Vehicles

Tools

Electrical Cords