Close up view of the Wisher Performance Auxjection plate installed on a GM LT4 engine, showing the integrated fueling solution and professional fitment

Seamless Integration

Controlled by your factory ECU
AuxJection Systems
Performance Software
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AuxJection System Overview

See how AuxJection integrates with your stock ECU for precise, controlled supplemental fueling

Engineered to work with your stock ECU. No standalone required.

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Latest From The Tech Blog

How much power AuxJection can support on a stock camshaft?

How much power AuxJection can support on a stock camshaft?

AuxJection Engine Dyno Testing Results

AuxJection Engine Dyno Testing Results

How much power AuxJection can support on a stock camshaft?

How much power AuxJection can support on a stock camshaft?