EPA Ban Mods - Not sure if this is a big deal or not

2011 Nismo#91

Maybe but what they say isn't what is written.

"Certified motor vehicles and motor vehicle engines and their emission control devices must remain in their certified configuration even if they are used solely for competition or if they become nonroad vehicles or engines; anyone modifying a certified motor vehicle or motor vehicle engine for any reason is subject to the tampering and defeat device prohibitions of 40 CFR 1068.101(b) and 42 U.S.C. 7522(a)(3"

639 pages with no table of contents or index, it's made so you can't find anything.