Jet Performance chip for 1991 Chevy/GMC C/K Pickup with 4.3L Engine Manual Transmission

Only JET Performance Chips 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 each application. 50 state smog legal!

• STAGE 1 - For stock or mildly modified vehicles. Fuel and timing curves are modified for optimal performance and mileage using less expensive, lower octane fuels. Programming is designed to burn fuel at peak efficiency, which results in improved performance and mileage. Daily drivers can use lower cost regular fuel for potential mileage gains, but for optimal performance gains use of mid-grade or better is recommended.

Installation Notes

Installation Difficulty:

Level 1Beginner

Disconnect Battery Cable

Installation Time: Less than an hour

Warranty

Limited Lifetime Warranty.