Pretty sure you don't need to remove the headliner. Just depress the tabs that it uses to slide along the rails and yank it out.
1999 Eclipse GSBuilt motorHahn 16G Turbo w/ FMICHahn Stage 5 Portfueler (270's & 500's)Zeitronix Zt-2 wideband w/ 3.5bar MAP3" SS Turbo BackCM Stage 4 Clutch and Fidanza FlywheelBaer Big Brake Kit