Holley Sniper Automatic Transmission Controllers 551-100 Controllers, EFI, Service Unit, Replacement Controller, Each
Holley Sniper Automatic Transmission Controllers 551-100 Controllers, EFI, Service Unit, Replacement Controller, Each
A$1,146.01
Special Order. Contact for ETA.
This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
We accept
Description
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 02:43:19
Features
Vehicle Compatibility and Return Conditions.
This item was designed and engineered in the USA for US domestic vehicles. OBD tools, ECUs, dongles, programmers, and tuners may have limited compatibility with vehicles outside the USA due to regional differences in emission standards and system configurations. Some features and functionality may vary depending on the vehicle and location.
Some electronic tuning devices and programmers require activation, registration, or pairing with a specific vehicle’s VIN (Vehicle Identification Number). Once activated or paired, these devices may become permanently associated with that vehicle, restricting or preventing their use on another vehicle, resticting our ability to offer returns or exchanges.
Please review the product details and images to ensure it meets your needs. For clarification or assistance, feel free to contact a StreetFX agent. Note: Returns are not accepted for special order or tuning products unless the unit is deemed faulty.
Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Specifications
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Holley Sniper, Sniper, Sniper (holley), Sniper Efi |
| StreetFX SKU | sne551-100 |
| SFX Item ID | 5013555 |
| Accounting SKU | sne-551-100 |
| Manufacturer SKU | 551-100 |
| Manufacturer UPC | 090127819753 |
| Alternative References | SNE-551-100, SNI551-100 |
Automatic Transmission Controllers, Sniper EFI, Service Unit, Replacement Controller, Each
The Holley Sniper Transmission Controller (STC) is designed for common GM and Ford electronic 4-speed automatic transmissions. Three part numbers cover a complete range of applications—all Sniper EFI systems, Sniper 2 EFI-specific (M8 CAN connection), or a full standalone unit.
The Sniper specific applications connect to your Sniper EFI system via CAN bus and are programmed through the existing Sniper 3.5 in. touch screen. No programming is available with PC computer software; however, the transmission functions can be data-logged and reviewed with Sniper PC software. The Standalone version includes a dedicated 3.5 in. touch screen and is primarily intended for carbureted engine combinations.
GM and Ford 4-speed electronic overdrive transmissions are simple in operation. They have four speeds, with the top gear being an overdrive; and all have a lockup torque converter that eliminates any slippage when the lockup is applied. With a stock torque converter, the lockup should only be applied under light throttle conditions or excessive wear will occur.
Upshifts, downshifts, and torque converter lockup are based on vehicle speed and throttle position (or optionally the MAP sensor) and are adjustable with the 3.5 in. touch screen.
P/N 551-100: Replacement controller unit only
P/N 551-101: Controller unit and power harness only
P/N 551-102: Standalone kit for carbureted applications (includes power harness and hand-held programmer)
P/N 551-103: Controller unit and power harness for use with Sniper 2 EFI systems
Holley Sniper Transmission Controller features:
• Adds electronic transmission control functionality to a Sniper 2
• Controls conventional electronic 4-speed transmission applications. GM 4L60/70/80E and Ford AODE and 4R70W - transmission specific harnesses sold separately:
-- 558-405 – GM 4L60/70/80E
-- 558-455 – 2009+ GM 4L60E
-- 558-470 – 1998+ Ford 4R70W/4R75W
-- 558-471 – 1992-1997 Ford AODE/4R70W
• Tuning is performed through the 3.5 in. touch screen LCD (included with the Standalone version). Future compatibility will include 5 in. display and Bluetooth module
• Tune upshifts, downshifts and WOT shift points
• Full programmability of torque converter lockup
• Full tuning of transmission line pressure (shift firmness)
• Controls and layouts interface mirror Dominator and Terminator X MAX ECUs (except no paddle shift)
• A MAP sensor is needed if using MAP for line pressure, which is usually only done with forced induction applications
| Product Attributes | |
|---|---|
| Brand | Holley Sniper |
| Manufacturer's Part Number | 551-100 |
| Part Type | Automatic Transmission Controllers |
| Product Line | Holley Sniper Automatic Transmission Controllers |
| UPC | 090127819753 |
| Remanufactured | No |
| Quantity | Sold individually. |
| Notes | Replacement controller unit only. Handheld and harnesses not included. |
Compatibility
Loading compatibility information...
Keep shopping
More from Holley Sniper
Holley Sniper
Holley Sniper Fuel Gauge Sending Units 19-162 Units, Sniper, Level, 73 ohms Empty, 10 ohms Full, Gold Finish, Each
sne19-162
A$230.89