i need some basic info, i have a 99 ex coupe, i swapped a 2000 si into it last year, now im gonna swap an 01 gsr. i never changed the radiator or motor mounts when i did the si swap, and everything is fine, do i have to change that when i put the gsr in it? anything else recommended to change when i do this swap?

 

just keep the mounts from the b16 swap and everything should fit the same, maybe some wiring issues, but nothing major. Should be simple after the b16 practice swap.

 

yup

 

If I were you, I would replace the radiator with one from a GSR. A friend of mine has a GSR and his gets pretty hot when he beats on it. And I am asuming that your EX has a small radiator like the rest of the civics. You would not be able to use your air. But it would be a small price to pay for not overheating your engine.