A rather neat find I must say. It's only fair to point out for those exceptionally lazy types (as myself) it's quite possible to install good quality 6.5 coax without a spacer adapter at all. I had to clearance a 1/4" X 2" long arced fillet out of the existing opening though. Was even able to use the plastic mount ring with gasket that came with the units.
\'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!