if am not mistaken both are the same, function as below
An oil catch can/tanks purpose is to separate and hold (catch) any oil and/or oil vapors from entering the intake or atmosphere through the crank case ventilation system.
The OCT is to catch oil vapour from the PCV valve that's usually routed to the intake manifold / TB.
Breather tank is to ensure coolant it not wasted in a radiator / cooling system. Not exactly sure why you'd need one since we have a overflow reservoir.
Guys, i am looking for bodykit parts for R34 GTT.. can anyone give me a contact... interested in east bear or GTR front conversion ( without wide body )
Anyone know how a modified GTR handles with the standard 4wd torque spiltter/ Altessa Pro? More to rear wheel or what?
And i believe HKS make an aftermarket controller.. any info on this 1st hand?
Cheers..