The Automatic Transmission Control Box gives you the ability to choose the gear and torque converter clutch lock-up for any GM electronic four-speed transmission/transaxle. Great for chassis-dyno work without having the transmission up- or downshift during testing. Click here for more information.

This conversion harness allows the Automatic Transmission Control Box to shift and control converter lock-up on a 4T80E four-speed automatic transaxle. Harness length is 12-ft.

When using the Automatic Transmission Control Box on late-model vehicles that have an internal neutral start switch or separate transmission control module (TCM), this jumper harness is required.

This conversion harness allows the Automatic Transmission Control Box to control converter lock-up on all non-electronic four-speed automatic transaxles and transmissions. Harness length is 12-ft. Connects to both four- and five pin transmission connectors.

Use this AC power cord to when 12-volt DC power is not readily available. Great for lab or bench transmission testing.

The NGK AFX is a true air/fuel monitor that senses exhaust oxygen, carbon monoxide, hydrogen, and hydrocarbons in the exhaust and calculates real time air fuel ratio (AFR). Air Fuel Ratio is a crucial parameter that dictates horsepower and engine performance. Performance enthusiasts and tuners can use Air Fuel Ratio information to make adjustments to the fuel delivery system (carburetor, fuel injection) to help achieve the maximum horsepower available from their engine. The AFX is compatible with both Bosch LSU and NTK UEGO (wideband) sensors without any changes in hardware or programming and offers superb accuracy (comparable to laboratory grade systems).