Some peeps here are right. My brother in law swapped a Jdm engine to his B13 and it didn't cause him that much compared to rebuilding a USDM. BAre in mind though that you need some of the components from the old USDM Engine If you want to stay legal. I think his car is running pretty good because his car has a low mileage compared to my USDM which barely reach a 100K. I don't know which is better between a JDM or USDM with thesame low mileage?
