Ugh, don't get me started on emission control systems in OTHER vehicles on the road(sky too I guess).
I've owned 5 cars that had an engine of 2 litres or less.
All of them had catalytic converters, mufflers, and some sort of EGR system.
So why can I go out and buy a 2 litre(or bigger) motorcycle with no cat, straight pipes for mufflers and no egr system and drive it up and down the street at 2 in the morning?
Having said that I'm not putting no stinkin cats on my Magna.
Oh wait...forget all of that...that hijack snuck up on me.