Holley 551-103 Sniper 2 Transmission Control Kit

Handheld not included

Part Number: 551-103

The Sniper Transmission Controller (STC) is designed for common Ford and GM electronic 4 speed transmissions. This covers a complete range of applications, for 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 is programmed through the existing Sniper 3.5-inch touchscreen (not included). 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 is primarily intended for carbureted engine combinations. Ford and GM 4 speed electronic overdrive transmissions have 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-inch touchscreen (not included).

Features and Benefits

• Adds electronic transmission control functionality to a Sniper 2
• Tuning is performed through an LCD touchscreen (not included)
• Tune upshifts, downshifts and wide open throttle (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 ECU's (except no paddle shift)
• Controls conventional electronic 4 speed transmission applications. Ford AODE and 4R70W and GM 4L60/70/80E 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
• Not compatible with 4WD installations

MAP sensor is needed if using MAP for line pressure, which is usually only done with forced induction applications. This product is not compatible with 4WD installations.