Drivetrain› Automatic Transmissions and Components

Holly

Sniper Transmission Controller

$728.95

SKU: 510-551-102

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Holley Sniper Transmission Controller (STC) is a standalone unit designed for carbureted applications, offering electronic control for common GM and Ford electronic 4-speed transmissions. It allows for adjustable upshifts, downshifts, and torque converter lockup based on vehicle speed and throttle position, or optionally a MAP sensor. The controller features a 3.5-inch touchscreen LCD for tuning transmission functions, including line pressure for shift firmness.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandHolly
Part Number510-551-102
CategoryDrivetrain

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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