Jet Performance 99111 JEEP Powertech Stage 1 Performance Chip for 1991 Jeep® with 4.0L 6 Cylinder & Automatic Transmission
Catalog #: 17608.0100
Jet Performance Part #: 99111 JEEP
Computer controlled engines on all new cars and trucks are run by programmed chips that tellthe engine what to do. Factory chips compromise between fuel economy and performance. The Jet Powertech Performance Chip replaces the stock computer chip and maximizes various performance characteristics. New programming adjusts spark timing & the air/fuel ratio to tune the engine for maximum power when you need it. Provides improved performance under demanding conditions such as towing & wide open throttle acceleration. Installs in less than 30 minutes and is legal in all 50 states.
Installs in less than 30 minutes and is legal in all 50 states.
Also fits 91 Cherokee XJ with 4.0L Automatic Transmission.
Jeep Wrangler (YJ)
- 1991 Jeep Wrangler (YJ)
Jeep Cherokee (XJ)
- 1991 Jeep Cherokee (XJ)