RPM22

i really want to build a 240 with a sr20 in it but i plan on moving to san diego and i heard that the laws are crazy about that down there does anyone know anything about that or anyway i could make the swap legal¿

rogoman

Here's the bottom line:
The SR20DET is NOT emissions legal in the U.S. The SR can be cleaned up by using a CAT and keeping most of the OEM emission devices intact such as the EGR valve.

If the emissions testing in your state doesn't require a visual inspection of the engine compartment and your 240SX is an S13 which doesn't use OBD-II, then the car should pass. If the car is an S14 with OBD-II and the emissions testing equipment plugs into the OBD-II connector, then the car will fail; also if the facility does visual checking of the engine compartment, the car will fail.

In California, they do full emissions testing along with VISUAL checking.