If you really need to revert to metric units (bearing in mind the real car is USDM and this is how it looks IRL) I did leave comments in the extensions file which should allow you to do what needs to be done.
Oops, yep, forgot to put that back into the suspensions.ini file it looks like. Damage is there for engine, turbo, gearbox and aero. I'll sort suspension out for the pending update, thanks for the heads up. =)
Thanks! =)