Ok. To answer your question first I picked this from the group:
List: Rolled Carpet (Universal) | O'Reilly Auto Parts
after I typed in this:
Now I have a question. Having replaced the carpet in mine I cannot picture all the effort and time it would take to force roll material to mold and conform to all the contours. Model-specific pre-molded would be the only way to go again AFAIC.
ESPECIALLY especially if doing in conjunction with mass backing for thermal/sound, which also is the only way I'd do it - again. HTH
OTOH if you're just adding appliques and leaving your existing carpet be, then forget everything I said.
\'96SS SOB: SSRI, Herter Tune, Tri-Y II, , 3000 Edge, F/HO bars, METCO extendeds with CV MMC, Bilsteins, currently Vredestein Ultrac Sessanta (315/35 rear). Finally, wait for it... LT-4 knock module!
\'96FWB BUW-Butt Ugly White: PCMPerformance tune, HDFA w/ swissed filter, 1/2 SLP s.s. catback with H- and Flow Super 50s, oem opti rebuilt 3 times, SS Bars, METCO LCA, Airlift 1000, Monroe SS, PowerTrax No-Slip, CTS wheels with +1 rubber. Finally, yes again... LT-4 knock module!