Choose from SCT X4, ITSX, and Livewire TS tuners & programmers to adjust and monitor your 1999-2004 Lightning's engine parameters. These tuners can monitor your Lightning's PCM data live in real-time on the screen to give you instant feedback on your motor's performance. This allows you to read and clear engine diagnostic codes for code troubleshooting. Use the included LiveLink data logging software to keep track of your engine's performance. LMR is your #1 source for SVT Lightning restoration and performance parts!