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1999 5.7L LS1 with Automatic Transmission Stage 1 Jet Performance Module

JT19914 - 1999 5.7L LS1 with Automatic Transmission Stage 1 Jet Performance Module

Add up to 23 horsepower instantly with simple, plug-in installation! JET Performance Modules provide exclusive, full range Dynamic Spectrum Tuning of the air/fuel ratio, ignition advance, transmission and various other parameters. Each program is track and dyno tested to ensure the most possible horsepower and drivability from your classic.

Stage 1 is for stock or mildly modified vehicles. Fuel and timing curves are modified for optimal performance and mileage using less expensive, lower octane fuel. These modules feature …

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Product #: JT19914

Out Of Stock!

MSRP: $269.99 ea
Classic: $244.99 ea


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