美國是案例法，大概你要打官司得先推翻這個案例。

https://www.justice.gov/archive/opa/pr/2007/July/07_enrd_490.html

CAA law: http://www.epw.senate.gov/envlaws/cleanair.pdf

Page 237 Sec 203.(a)(3)(B)

for any person to manufacture or sell, or offer to sell, or install, any part or component intended for use with, or as part of, any motor vehicle or motor vehicle engine, where a principal effect of the part or component is to bypass, defeat, or render inoperative any device or element of design installed on or in a motor vehicle or motor vehicle engine in compliance with regulations under this title, and where the person knows or should know that such part or component is being offered for sale or installed for such use or put to such use; or

自己去讀剩下的CAA去。