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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
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$599.95
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$728.95
$538.95
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$655.95
On Sale
Summit Racing™ Pro LS torque converters are designed for stock and modified LS-powered street vehicles that make up to 600 rwhp. They will furnish the extra stall speed that you need for quicker launches—and they pair well with our Summit™ Pro LS series camshafts. These computer-balanced torque converters feature: woven carbon lockup clutch lining; heavy-duty Torrington bearings; hand TIG welding; a new pilot, impeller hub, and turbine hub; and a custom stator. The torque converters are available in a variety of options; order the model recommended for your application.
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$564.99
$509.99
On Sale
Hays Twister 3/4 Race performance torque converters are designed to be the perfect solution for your street/strip machine. Hays designed the Twister torque converters to be one step short of being a "Full Race" converter giving you the perfect combination of performance and affordability. Every torque converter is hand built, inspected and tested to ensure they meet the top of the line quality you expect. To ensure consistency and improve performance each converter is built for one transmission with one bolt pattern, meaning a lighter converter to maximize performance. High flow stators promote better cooling and heavy duty Torrington bearings are used to increase strength and durability. Not ready to go a "Full Race" converter, Hays is there for you with their Twister 3/4 Race torque converters.
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$599.95
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$849.95
$538.95
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$763.95
On Sale
Built to exceed your expectations, Auburn Gear provides a variety of Grip-N-Loc differentials to match most makes and models. They build upon exclusive technologies previously found in their limited slip line—but with more robust construction and materials to satisfy the extreme demands of serious drivers. If you push the limits of performance and traction, perhaps through competition, or simply through extreme weather driving, Auburn Gear Grip-N-Loc differentials offer the best options to fit your application! More product features include: * Upgrades your vehicle for the safe transfer of increased power/torque across the axle * Case material is up to 50 percent stronger than OE cases * Advanced cone clutch technology provides a 25 percent increase in bias ratio/increased traction * Hardened-steel gear materials for confidence in extreme conditions * 2-year warranty
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$555.99
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$812.99
$500.39
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$731.69
On Sale
Hays Street/Strip clutch kits are engineered and built as matched assemblies, using only top-quality new parts, to deliver maximum reliability and durability, as well as long-term dependability. They're available in both diaphragm and Borg & Beck styles, with sprung-hub clutch discs that have organic linings. Applications are available to fit a variety of cars and trucks aimed at street or street-and-strip use. These kits come complete with a pressure plate, clutch disc, throwout bearing, and clutch-alignment tool (most kits). A pilot bushing is not included.
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$599.95
$538.95
On Sale
Hays classic clutch kits are great replacements for original equipment units. They're available for all three major clutch types, diaphragm, Borg & Beck, and Long, and feature clutch discs with sprung hubs and organic linings. There are applications for a huge range of domestic vehicles, including pony cars, muscle cars, classics, and pickups. Kits come complete with pressure plate, clutch disc, throwout bearing, and clutch-alignment tool (most kits). Pilot bushing not included.
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$749.95
$673.95
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