Gas around here runs $1.70-.80 for 91 octane. Could 91 octane and octane booster be used on a regular basis without damage to O2's or cats? I also saw the two types of octane booster from NOS, one says not to use on street driven cars. Does it have something to do with possible damage to smog equipment?
98 SE Sport. custom catback, Intrax springs, 3L, 3L valves, APEXi S-AFC, 24# injectors.
Other cars:
72 Challenger 360 motor 727 trans (used for parts)
73 Challenger 340 motor 727 trans 15.60 1/4 with bad miss and clogged fuel filter.
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