you can do whatever tune you want for octane. Mine has 3 I have a 87 performance, 93 gas mileage, and 93 performance. For the rear yeah 7.5 stock gears and transmission is auto. Stock or modified means is you car stock. If you don't have the O/R H pipe yet don't install the tune until you install the midpipe (if you end up listing that as your exhaust). The muffler depends on the kind of mufflers you get but chances are you will just be getting mufflers. Since you really haven't done any mods yet I would hold off on buying this
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sig by PcolaV6
Quote:
Originally Posted by WaterDR
Hell, I could shove a rocket up my ass and jump on a skate board. Does that make me better then a 1988 GT?
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