Are you sure it was 2001? My 2002 doesn't have it but my dads 2003 does. The throttle bodies are definitely different.
2002 Tacoma DCab TRD, OME suspension, 1" Daystar Bodylift, ARB front bumper, Lightforce 170's, 20" led light bar, blacked out HID bixenon projectors, Slee Sliders, 33" Toyo's on FJ80 rims, TRD supercharger, exhaust, and trans cooler.
to do: snorkel, roof light bar, ARB fridge mounts in bed w power.