> The sane environmental stuff you mentioned has morphed into a requirement for deeply integrated electronic oversight
Decent catalytic converters require an array of sensors, ECU, and ability to fine control the engine inputs to work - without them most large cities would become smog ridden hells.
Decent catalytic converters require an array of sensors, ECU, and ability to fine control the engine inputs to work - without them most large cities would become smog ridden hells.