The nomad valvebody gives sharper, quicker gear changes, reduces flaring and stops the box from hunting gears. They claim it makes the gearbox strong enough to handle 3x the standard power output from the engine and make the box last a lot longer. I noticed that when having a bit of fun on the gravel road it always seems to be in the right gear. Really does make it feel like a sports car! Claimed to help engine braking downhill but I didn't do enough of that before fitting the nomad so I can't claim any difference.
Could those small "radiators" be for the aircon?
Tap, crackle, pop