Hey guys. I own a 2008 Toyota mark x 300g with the 3gr-fse engine. How hard would it be to swap in a 2grfse from a 2009+ mark x. I’m sure mounts wouldn’t be a problem, getting 2gr in would be the easy bit it’s the electronics that would be difficult. Anybody know any info regarding ecu setup to install 2gr into the 300g, can I mod factory ecu or would I need the one that comes with the 3.5. Any help would be appreciated thanks.
