Hypertech 353322 TBI Auto Computer Chip (95 S10/S15 4.3L) The product is 353322 - 95 S10/S15 4.3L TBI Auto Computer Chip Easy to install The product is manufactured in United States Must run premium fuel Plug in and go, no wiring or soldering required 50-state street legal Use with 160 degree or 180 degree thermostat