KILLERMK3 said:how do you run leaded gas in a supra? I heard it will take the cat and o2 sensor out.
yeah it isnt cat friendly for sure. for the 02 mine is on a spacer. it allows the 02 sensor to be open to the exhaust stream and not in it so it wont clog w/ lead. i also run a $30 02 sensor too, not the $100 toyota so it isnt that big of a deal to change once a year or more often if nec.