In the futrue im planing on swaping out the stock motor 4 a Bseries i no almost anything can b drop in the shell but what can be drop and emisson friendly, EXAMPLE, i was leaning tord the B20 off passwordjdm.com would a jdm motor even pass emission or does it HAVE 2 B USDM or would it makes thing easyr if it was (AND YES I IM CLUELESS WHEN IT COMES 2 EMISSIONS)