Wanted: California Legal Modified Fiero (Page 2/2) reinhart OCT 21, 02:30 PM quote Originally posted by Vintage-Nut: California Engine Swap Guidelines / Laws https://ww3.arb.ca.gov/mspr...website-download.pdf Edit: The California engine change laws are intended to make sure that, after an engine swap, the new engine/transmission does not put more pollutants into the air than the original engine/transmission Shouldn't be a problem to have a manual transmission. "3. The transmission and evaporative systems will be allowed to remain in the recipient vehicle configuration, but must function appropriately:. Never done one of these but one isn't forced to swap the transmission in wfrom the original drivetrain according to that. One could use the getrag if it mates with an adaptor. After it passes inspection I'm sure no future smog tech would notice if a 6 speed or something else were swapped in if desired.