CA wants to smog check motorcycles

[zed]

if they don't measure the output of bikes, how do they know how much they are contributing?

well, someone thought it through.

Tim Buche, president of the Motorcycle Industry Council in Irvine, said the aims of the test could be circumvented more easily by motorcyclists than by other motorists: Aftermarket exhaust systems, which cost $1,000 to $4,000, can be removed in several hours and reinstalled after the test.