Bosh Borgan scenario help?

It may be just the way I set up the car, but the game refuses to let me select a catalytic converter. It just says “none” and then goes to the mufflers. Does anyone know what I’m doing wrong or is it a bug in the scenario?

What I know is that catalytic isn’t available with Carburettors. Maybe that’s the thing? I didn’t play this scenario yet.

I won gold by using carbs and cats. You have to select unleaded fuel in order for the catalytic converters to appear*. Have fun!

*check the fuel system tab, under “fuel type” choose regular or premium…

Woops, meant unleaded fuel, not carbs… silly! Good one Slim Jim!

oh ok, thanks.