I have the Autopower 4-point bolt-in bar in mine, and I left the backseat in because, like Matt said, in SCCA ST class (which I *was* in at the time), a back seat is mandatory.
I'm now in Street Mod (SM) which, according to the 2001 SCCA rule book, does not mandate a back seat be kept.
So, I may be taking her out one day. The back seat weighs next to nothing, really, so the weight savings are negligible.
The Autopower 4-point bar requires you to *bend* the sides of the back seat upright, in order to put the seat in with the bar. No big deal, just requires some muscle to get the seat back to where it will bolt back to the original location.
, '93 SE-R w/ 149,000 miles, JWT pop, header, ProActive
clutch, ST bar, NOS direct-port 75hp, Autopower 4-point roll bar/harnesses.
1/4 mile, [email protected] 1/8 mile, 1.98 60-ft.
My SE-R page, with videos