its mounted infront of the radiator/ac condensor, then piped straight from the gearbox. originally it would've been piped to the bottom of the radiator, i haven't connected it to the radiator at all, if I wanted to make a further improvement i could probably loop it through the radiator too, but the hose cost $12.50/m and I haven't had time.
I strongly recommend replacing the hoses if they are 15 years old because mine leaked somewhere, but I think it was only under pressure, it would then leave little deposits on the driveway. I haven't lost a single drop since the new hoses.
The cooler is retained with zip ties, not the smartest thing i know, but it doesn't move.